Main areas of research interest:

• Sleep and sleep disorders
• Insomnia
• Circadian rhythms, shift work, bright light treatment, melatonin
• Sleep apnea
• Treatment of sleep disorders, incl chronic insomnia with stimulus control, sleep restriction

Short biography:

• 1983-4: Rotary scholarship at Middle Georgia College, Cochran, Georgia, USA.
• 1984-90: University of Bergen, Medical School. Highest GPA (10.74) in my class
• 1991: Internship, Vest-Agder Sentralsykehus, Kristiansand.
• 1992: Internship, General Practice, Namsos.
• 1992-5: Research fellow, Dept of Physiology, University of Bergen.
• 1994: Part-time occupational physician, Statens Vegvesen, Hordaland.
• 1995: PhD. Serotonin and the sleep/wake cycle, Dept. of Physiology, University of Bergen.
• 1995-8: Post-doctoral fellow, Dept. of Physiology, University of Bergen.
• 1997: Visiting Scientist, Dept. of Psychology, Princeton University, New Jersey, USA.
• 1998-2002: Associate Professor, Section for General Practice, University of Bergen (50%).
• 1998-2015: General Practitioner (fastlege), Ulriksdal Legesenter/Fjellsiden Legesenter (50%).
• 2003-2018: Specialist in General Practice.
• 2002-present: Professor, Department of global public health and primary care, University of Bergen (50%).
• 1996-present: Co-founder and Sleep specialist, Bergen søvnsenter, a private Sleep Disorders Center.
• 2004-present: Director, Norwegian Competence Center for Sleep Disorders (SOVno) www.helse-bergen.no/sovno.
• 2010-present: Director, Centre of Sleep Medicine, Haukeland University Hospital.
• 2018-March2024: Leader, coordinator-team, Norwegian Primary Care Research Network (www.praksisnett.no)
• March2024-present: Project leader, Norwegian Primary Care Research Network (www.praksisnett.no)

Bjorvatn has more than 700 publications, and many of those are registered in PubMed. He has written four books about sleep and sleep disorders, and written multiple chapters in Norwegian and English textbooks. His H-index (May 2024) is 72. 

He has supervised 22 phd-candidates (8 as main supervisor), and is currently supervising 9 candidates (3 as main supervisor).

During last years given more than 50 interviews yearly about sleep, circadian rhythm, sleep disorders, and treatment options to Norwegian newspapers/magazines/radio stations. I consider it of great importance to increase public awareness about sleep and the consequences of sleep problems. The self-help book "Bedre søvn. En håndbok til deg som sover dårlig", published by Fagbokforlaget, has been shown to be effective in a randomized controlled trial (RCT) among patients with insomnia disorder. I have also published text books on "Sleep disorders", "Sleep in adolescence", and "Shiftwork and sleep".

During last three years presented more than 150 lectures about sleep, circadian rhythm, shift work and treatment of sleep disorders to medical doctors and other health personnel.

Academic article

• Andrea Romarheim; Ragnhild Stokke Lundetræ; Ingvild Saxvig et al. (2026). Prevalence and Predictors of Obstructive Sleep Apnea in Men and Women from an Outpatient Clinic Cohort: Focus on Clinical Characteristics, Cardiovascular Disease, and Serum Biomarkers. (external link)
• Håkon Lundekvam Berge; Karl Erik Lundekvam; Siri Waage et al. (2026). Sleep in the age of technology: the use of sleep apps and perceived impact on sleep and sleep habits. (external link)
• Bjørn Bjorvatn; Siri Waage; Ragnhild Stokke Lundetræ et al. (2026). The impact of sleep duration, sleep debt and insomnia symptoms on infection risk: a longitudinal cohort study with 1-year follow-up. (external link)
• Jiewen Zhang; Anette Kristoffersen Harris; Bjørn Bjorvatn et al. (2026). Social jetlag and insomnia in the framework of personality traits: The mediating roles of general procrastination, problematic social media use, and bedtime procrastination. (external link)
• Filip Borgen Andersen; Ståle Pallesen; Ingvild Thorsen Egaas et al. (2026). Protocol for a systematic review and meta-analysis on the associations between short rest periods between shifts and health, function, and behavioral outcomes. (external link)
• Stand Fenimore Hiestand; Ståle Pallesen; Ingeborg Forthun et al. (2026). Adverse childhood experiences and personality traits associate with excessive fatigue in Norwegian nurses. (external link)
• Siri Waage; Ståle Pallesen; Bjørn Bjorvatn (2026). Irritable bowel syndrome among Norwegian nurses – associations with insomnia, excessive sleepiness, shift work disorder and shift work schedule. (external link)
• Erlend Sunde; Ingebjørg Louise Rockwell Djupedal; Øystein Vedaa et al. (2026). Effects of Reducing the Number of Quick Returns (< 11 h off Between Shifts) on Turnover Intention and Job Satisfaction: a Cluster-Randomized Controlled Trial Among Healthcare Workers. (external link)
• Courtney J. Bolstad; Bjørn Bjorvatn; Ngan Yin Chan et al. (2025). Prevalence Rates of Frequent Dream Recall and Nightmares by Age, Gender and Sleep Duration in 16 Countries. (external link)
• Severin Ableidinger; Luigi DeGennaro; Sergio Mota-Rolim et al. (2025). Lucid Dreaming: Not Just Awareness, but Agency. (external link)
• Trygve Müller Jonassen; Bjørn Bjorvatn; Sahrai Saeed et al. (2026). Impact of obstructive lung disease and sleep apnea symptoms on cardiovascular risk and all-cause mortality: insights from a community-dwelling cohort. (external link)
• Andrea Romarheim; Sverre Lehmann; Bjørn Bjorvatn et al. (2025). Overcoming an underdiagnosed respiratory condition: should more patients with cardiovascular complications be screened for obstructive sleep apnea?. (external link)
• Lee Di Milia; Bjørn Bjorvatn (2025). The relationship between shift work, sleep, and work hours on wellbeing. (external link)
• Ståle Pallesen; Ingvild Saxvig; Siri Waage et al. (2025). The Prevalence of Sexsomnia in a General Population Sample. (external link)
• Louise Bjerrum; Lin Sørensen; Inger Hilde Nordhus et al. (2026). Does exposure to artificial light in the morning reduce reaction time variability during cognitive control processing?. (external link)
• Erik Vevatne Øverland; August Arentz Sunnarvik Waaraas; Ragnhild Stokke Lundetræ et al. (2025). No association between obstructive sleep apnea and restless legs syndrome: results from a large hospital-based cross-sectional study. (external link)
• Bodil Victoria Guldbrandsen; Kelly Baron; Øystein Vedaa et al. (2025). Development of a scale for measuring orthosomnia: the Bergen Orthosomnia Scale (BOS). (external link)
• Louise Bjerrum; Endre Visted; Inger Hilde Nordhus et al. (2025). Light of both high and low melanopic illuminance improves alertness and attention during daytime. (external link)
• Tomi Sarkanen; Ilona Merikanto; Bjørn Bjorvatn et al. (2025). Long COVID as a risk factor for hypersomnolence and fatigue: insights from the 2nd International Covid Sleep Study Collaboration (ICOSS-2). (external link)
• Bjarte Birkeland Kysnes; Anette Harris; Siri Waage et al. (2026). Associations between shift work characteristics and work-related accidents and dozing off: combining: objective working-time register and retrospective survey data. (external link)
• Ane Wilhelmsen-Langeland; Ingrid Dundas; Ståle Pallesen et al. (2025). How do youth with Delayed Sleep-Wake Phase Disorder experience a chronobiological treatment protocol? An interview study. (external link)
• Linn Nyjordet Evanger; Ingvild Saxvig; Ståle Pallesen et al. (2025). Associations Between Sleep Patterns, Circadian Preference, and Anxiety and Depression: A Two-Year Prospective Study Among Norwegian Adolescents. (external link)
• Eirunn Thun; Bjørn Bjorvatn; Elisabeth Flo-Groeneboom et al. (2015). Sleep, circadian rhythms, and athletic performance - PubMed. (external link)
• Bjørn Bjorvatn; Ragnhild Stokke Lundetræ; Øystein Vedaa et al. (2025). A randomized controlled trial comparing sleep hygiene advice with a self-help book focusing on cognitive behavioral therapy for insomnia: a study among patients with prescribed hypnotics from the GP. (external link)
• Ragnhild S. Lundetræ; Sverre Lehmann; Ingvild W. Saxvig et al. (2025). Severity of obstructive sleep apnea is related to C-reactive protein levels: The influence of comorbidities and self-reported sleep duration. (external link)
• Daniel Hosøy; Philip Brevig Ørner; Ståle Pallesen et al. (2025). Night work and sleep debt are associated with infections among Norwegian nurses. (external link)
• Ingebjørg Louise Rockwell Djupedal; Anette Harris; Erling Svensen et al. (2025). Shift Schedule With Fewer Short Daily Rest Periods and Sickness Absence Among Health Care Workers. A Cluster Randomized Clinical Trial. (external link)
• Yngvild Sørebø Danielsen; Hanna Flækøy Skjåkødegård; Bjørn Bjorvatn et al. (2021). Polysomnographic comparison of sleep in children with obesity and normal weight without suspected sleep-related breathing disorder. (external link)
• Ståle Pallesen; Svein Larsen; Bjørn Bjorvatn (2016). “I Wish I'd Slept Better in That Hotel” – Guests’ Self-reported Sleep Patterns in Hotels. (external link)
• Arne Lowden; Gulcin Ozturk; Amy Reynolds et al. (2019). Working Time Society consensus statements: Evidence based interventions using light to improve circadian adaptation to working hours. (external link)
• Cecilie Schou Andreassen; Ståle Pallesen; Bente Elisabeth Moen et al. (2018). Workaholism and negative work-related incidents among nurses. (external link)
• Iris Mulders Steine; Dagfinn Winje; John H. Krystal et al. (2020). Longitudinal Relationships between Perceived Social Support and Symptom Outcomes: Findings from a sample of Adult Survivors of Childhood Sexual Abuse. (external link)
• Bjørn Bjorvatn; CA Fornal; FJ Martin et al. (2000). Venlafaxine and its interaction with WAY 100635: effects on serotonergic unit activity and behavior in cats. (external link)
• Bjørn Bjorvatn; Siri Waage; Ingvild W. Saxvig (2022). Do people use methods or tricks to fall asleep? A comparison between people with and without chronic insomnia. (external link)
• Eli Sørensen; Bjørn Bjorvatn; Reidun Ursin (2000). Sleep-wake effects following the selective 5-HT1A receptor antagonist p-MPPI in the freely moving rat. (external link)
• Bjørn Bjorvatn (2000). Søvn ved depressive lidelser. (external link)
• Siri Omvik; Ståle Pallesen; Bjørn Bjorvatn et al. (2007). Night-time thoughts in high and low worriers: Reaction to caffeine-induced sleeplessness. (external link)
• Hogne Vikanes Buchvold; Ståle Pallesen; Nicolas Melchior Frederic Øyane et al. (2015). Associations between night work and BMI, alcohol, smoking, caffeine and exercise - A cross-sectional study Occupational health. (external link)
• Iris Mulders Steine; Dagfinn Winje; Jens Christoffer Skogen et al. (2017). Posttraumatic symptom profiles among adult survivors of childhood sexual abuse: A longitudinal study. (external link)
• Bjørn Bjorvatn; Siri Waage; Knut Erik Emberland et al. (2024). The associations between different types of infections and circadian preference and shift work. (external link)
• Eldbjørg Fiske; Chiara Maria Portas; Janne Grønli et al. (2007). Increased extracellular 5-HT but no change of sleep after perfusion of a 5-HT1A antagonist into the dorsal raphe nucleous of rats. (external link)
• Ingvild W. Saxvig; Ane Wilhelmsen-Langeland; Ståle Pallesen et al. (2019). Habitual sleep, social jetlag, and reaction time in youths with delayed sleep–wake phase disorder. A case–control study. (external link)
• Signe Karen Dørheim; Bjørn Bjorvatn; Malin Eberhard-Gran (2014). Can insomnia in pregnancy predict postpartum depression? A longitudinal, population-based study. (external link)
• Dieter Riemann; Chiara Baglioni; Claudio Bassetti et al. (2017). European guideline for the diagnosis and treatment of insomnia. (external link)
• Øystein Vedaa; Anette Harris; Siri Waage et al. (2020). A longitudinal study on the association between quick returns and occupational accidents. (external link)
• Bjørn Bjorvatn; Sverre Lehmann; Shashi Gulati et al. (2015). Prevalence of excessive sleepiness is higher whereas insomnia is lower with greater severity of obstructive sleep apnea. (external link)
• Øystein Vedaa; Bjørn Bjorvatn; Nils Magerøy et al. (2013). Longitudinal predictors of changes in the morningness-eveningness personality among Norwegian nurses. (external link)
• Kristine Marie Stangenes; Mari Hysing; Maria Vollsæter et al. (2025). Sleep problems from age two to five years and neurological outcome in children born extremely preterm: a cross-sectional study. (external link)
• Maria Katsifaraki; Kristian Bernhard Nilsen; Jan Olav Christensen et al. (2020). Pain complaints after consecutive nights and quick returns in Norwegian nurses working three-shift rotation: an observational study. (external link)
• Ståle Pallesen; Inger Hilde Nordhus; Siri Omvik et al. (2007). Prevalence and risk factors of subjective sleepiness in the general adult population. (external link)
• Gunhild Nordbø Marthinsen; Sølvi Helseth; Milada Cvancarova Småstuen et al. (2022). Sleep patterns and psychosocial health of parents of preterm and full-born infants: a prospective, comparative, longitudinal feasibility study. (external link)
• Linor Berezin; Rida Waseem; Ilona Merikanto et al. (2024). Habitual short sleepers with pre-existing medical conditions are at higher risk of Long COVID. (external link)
• Iris Mulders Steine; John H Krystal; Inger Hilde Nordhus et al. (2012). Insomnia, nightmare frequency, and nightmare distress in victims of sexual abuse: the role of perceived social support and abuse characteristics. (external link)
• Ståle Pallesen; Fred Holsten; Alvhild Alette Bjørkum et al. (2004). Er søvnvansker ved nattarbeid et problem for offshoreindustrien?. (external link)
• Alvhild Alette Bjørkum; Ståle Pallesen; Fred Holsten et al. (2004). Skiftarbeid og ulykker - relevans for offshoreindustrien. (external link)
• Ståle Pallesen; Børge Sivertsen; Inger Hilde Nordhus et al. (2014). A 10-year trend of insomnia prevalence in the adult Norwegian population. (external link)
• Ingvild Saksvik-Lehouillier; Bjørn Bjorvatn; Hilde Hetland et al. (2013). Individual, situational and lifestyle factors related to shift work tolerance among nurses who are new to and experienced in night work. (external link)
• Øystein Vedaa; Ståle Pallesen; Eilin K. Erevik et al. (2018). Long working hours are inversely related to sick leave in the following 3 months: a 4-year registry study. (external link)
• Bjørn Bjorvatn; CA Fornal; FJ Martín et al. (2000). Venlafaxine and its interaction with WAY 100635: effects on serotonergic unit activity and behavior in cats. (external link)
• Bjørn Bjorvatn (2000). Søvn ved depressive lidelser. (external link)
• Ingeborg Forthun; Knut Eirik Ringheim Eliassen; Knut Erik Emberland et al. (2023). The association between self-reported sleep problems, infection, and antibiotic use in patients in general practice. (external link)
• Stefan Hjørleifsson; Bjørn Bjorvatn; Eivind Meland et al. (2019). The when and how of the gynaecological examination: a survey among Norwegian general practitioners. (external link)
• Si-Jing Chen; Charles M. Morin; Hans Ivers et al. (2023). The association of insomnia with long COVID: An international collaborative study (ICOSS-II). (external link)
• Kristin Marie Hoven; Hans Jørgen Aarstad; Bjørn Bjorvatn et al. (2018). Correlation between excessive daytime sleepiness (EDS) and self-reported and objective nasal characteristics. (external link)
• Jelena Mrdalj; Ståle Pallesen; Anne Marita Milde et al. (2013). Early and later life stress alter brain activity and sleep in rats. (external link)
• Arne Fetveit; Bjørn Bjorvatn (2006). Sleep duration during the 24-hour day is associated with the severity of dementia in nursing home patients. (external link)
• Ane Wilhelmsen-Langeland; Ingvild W. Saxvig; Ståle Pallesen et al. (2013). The Personality Profile of Young Adults With Delayed Sleep Phase Disorder. (external link)
• Nicolas Øyane; Ingvar Bjelland; Ståle Pallesen et al. (2008). Seasonality is associated with anxiety and depression: The Hordaland health study. (external link)
• Bjørn Bjorvatn; Janne Grønli; Frøydis Hamre et al. (2002). Effects of sleep deprivation on extracellular serotonin in the hippocampus and frontal cortex of the rat. (external link)
• Anne helene Garde; Anette Harris; Øystein Vedaa et al. (2019). Working hour characteristics and schedules among nurses in three Nordic countries – a comparative study using payroll data. (external link)
• Bjørn Bjorvatn (2000). Langvarige søvnvansker - kan de behandles?. (external link)
• Ingrid Bjorøy; Vilde Aanesland Jørgensen; Ståle Pallesen et al. (2020). The prevalence of insomnia subtypes in relation to demographic characteristics, anxiety, depression, alcohol consumption and use of hypnotics. (external link)
• Kristina Vaktskjold Hamre; Ståle Einarsen; Øystein Løvik Hoprekstad et al. (2020). Accumulated long-term exposure to workplace bullying impairs psychological hardiness: A five-year longitudinal study among nurses. (external link)
• Sabine Ruths; Jørund Straand; Harald Nygaard et al. (2004). Effect of antipsychotic withdrawal on behavior and sleep/wake activity in nursing home residents with dementia: A randomized, placebo-controlled, double-blinded study the Bergen District Nursing Home study. (external link)
• Arne Fetveit; Bjørn Bjorvatn (2004). The effects of bright-light therapy on actigraphical measured sleep last for several weeks post-treatment. A study in a nursing home population. (external link)
• Arne Fetveit; B Bjorvatn (2005). Bright-light treatment reduces actigraphic-measured daytime sleep in nursing home patients with dementia: a pilot study. (external link)
• Chiara Maria Portas; Bjørn Bjorvatn; Reidun Ursin (2000). Serotonin and the sleep/wake cycle: special emphasis on microdialysis studies. (external link)
• Bjørn Bjorvatn; Ståle Pallesen; Janne Grønli et al. (2014). Prevalence and correlates of insomnia and excessive sleepiness in adults with obstructive sleep apnea symptoms. (external link)
• Eirunn Thun; Bjørn Bjorvatn; Teresa Maria Osland et al. (2012). An actigraphic validation study of seven morningness-eveningness inventories. (external link)
• Arne Fetveit; Arvid Skjerve; Bjørn Bjorvatn (2003). Bright light treatment improves sleep in institutionalised elderly - an open trial. (external link)
• Chiara Baglioni; Ellemarije Altena; Bjørn Bjorvatn et al. (2019). The European Academy for Cognitive Behavioural Therapy for Insomnia: An initiative of the European Insomnia Network to promote implementation and dissemination of treatment. (external link)
• Ståle Pallesen; Inger Hilde Nordhus; Børge Sivertsen et al. (2007). Epworth søvnighetsskala. (external link)
• Erlend Joramo Brevik; Astri Lundervold; Anne Halmøy et al. (2017). Prevalence and clinical correlates of insomnia in adults with attention-deficit hyperactivity disorder. (external link)
• Ståle Pallesen; Bjørn Bjorvatn; Siri Waage et al. (2021). Prevalence of shift work disorder: A systematic review and meta-analysis. (external link)
• Sylvia Bjørnsen Natvik; Bjørn Bjorvatn; Bente Elisabeth Moen et al. (2011). Personality factors related to shift work tolerance in two- and three-shift workers. (external link)
• Ståle Pallesen; Inger Hilde Nordhus; Bjørn Bjorvatn et al. (2016). Søvnrelatert rettsmedisin – straffbare handlinger begått i søvne. (external link)
• Corné A. M. Roelen; Nils Magerøy; W van Rhenen et al. (2013). Low job satisfaction does not identify nurses at risk of future sickness absence: Results from a Norwegian cohort study. (external link)
• Øystein Vedaa; Eirik Morland; Marit Hjellset Larsen et al. (2017). Sleep detriments associated with quick returns in rotating shift work: a diary study. (external link)
• Espen Saxhaug Kristoffersen; Bjørn Bjorvatn; Peder Andreas Halvorsen et al. (2022). The Norwegian PraksisNett: a nationwide practice-based research network with a novel IT infrastructure. (external link)
• Bjørn Bjorvatn; Janne Grønli; Ståle Pallesen (2010). Prevalence of different parasomnias in the general population. (external link)
• Bjørn Bjorvatn; Siri Waage; Ståle Pallesen et al. (2023). The association between different sleep health dimensions and sex, age, education, circadian preference, and chronic insomnia: a representative population-based study. (external link)
• Bjørn Bjorvatn; Alvhild Alette Bjørkum; Dag Olav Grini Neckelmann et al. (1995). Sleep/Waking and EEG Power Spectrum Effects of a Nonselective Serotonin (5-HT) Antagonist and a Selective 5-HT Reuptake Inhibitor Given Alone and in Combination. (external link)
• Ingvild Berg Saksvik; Bjørn Bjorvatn; Hilde Hetland et al. (2012). Personality factors predicting longitudinal changes in shift work tolerance among rotating shift working nurses. (external link)
• Ståle Pallesen; Ingvild W. Saxvig; Helge Molde et al. (2011). Brief report: Behaviorally induced insufficient sleep syndrome in older adolescents. Prevalence and correlates. (external link)
• Iselin Reknes; Guy Notelaers; Nils Magerøy et al. (2017). Aggression from Patients or Next of Kin and Exposure to Bullying Behaviors: A Conglomerate Experience?. (external link)
• Kristine Marie Stangenes; Mari Hysing; Irene Bircow Elgen et al. (2019). Sleep problems, behavioural problems and respiratory health in children born extremely preterm: a parental questionnaire study. (external link)
• B Sivertsen; S Øverland; N Glozier et al. (2008). The effect of OSAS on sick leave and work disability. (external link)
• Børge Sivertsen; Simon Øverland; Ståle Pallesen et al. (2009). Insomnia and long sleep duration are risk factors for later work disability. The Hordaland Health Study. (external link)
• Ståle Pallesen; Bjørn Bjorvatn; Inger Hilde Nordhus et al. (2007). Søvnsykdommer - en oversikt. (external link)
• Arne Fetveit; Bjørn Bjorvatn (2007). Søvnforstyrrelser ved psykiske lidelser. (external link)
• Ståle Pallesen; Inger Hilde Nordhus; Børge Sivertsen et al. (2007). Psykologers kunnskaper om søvn. (external link)
• Siri Waage; Ståle Pallesen; Bente Elisabeth Moen et al. (2013). Sleep and Health in Oil Rig Workers-Before and After a Two Week Work Period Offshore. (external link)
• Yaping Liu; Eemil Partinen; Ngan Yin Chan et al. (2022). Dream-enactment behaviours during the COVID-19 pandemic: an international COVID-19 sleep study. (external link)
• Erlend Sunde; Torhild Pedersen; Jelena Mrdalj et al. (2020). Alerting and Circadian Effects of Short-Wavelength vs. Long-Wavelength Narrow-Bandwidth Light during a Simulated Night Shift. (external link)
• Siri Omvik; Børge Sivertsen; Ståle Pallesen et al. (2008). Daytime functioning in older patients suffering from chronic insomnia: Treatment outcome in a randomized controlled trial comparing CBT with Zopiclone. (external link)
• Ingvild W. Saxvig; Ane Wilhelmsen-Langeland; Ståle Pallesen et al. (2014). A randomized controlled trial with bright light and melatonin for delayed sleep phase disorder: Effects on subjective and objective sleep. (external link)
• Synne Skjærstein; Kaja Michelsen Åsaune; Lars T. Fadnes et al. (2024). Kostholdsveiledning hos fastlegen – hva rapporterer pasientene?. (external link)
• Ane Wilhelmsen-Langeland; Ingvild W. Saxvig; Emma Hole Johnsen et al. (2019). Patients with delayed sleep-wake phase disorder show poorer executive functions compared to good sleepers. (external link)
• Elisabeth Flo; Ståle Pallesen; Bente Elisabeth Moen et al. (2014). Short rest periods between work shifts predict sleep and health problems in nurses at 1-year follow-up. (external link)
• Eirunn Thun; Siri Waage; Bjørn Bjorvatn et al. (2020). Short sleep duration and high exposure to quick returns are associated with impaired everyday memory in shift workers. (external link)
• Stine Hjelle Skelton; Ståle Pallesen; Bjørn Bjorvatn et al. (2002). Lysbehandling: En oversikt over anvendelesområder og virkningsmekanismer. (external link)
• Siri Waage; Ståle Pallesen; Bjørn Bjorvatn (2007). Skiftarbeid og søvn. (external link)
• Børge Sivertsen; Siri Omvik; Odd E. Havik et al. (2006). A comparison of actigraphy and polysomnography in older adults treated for chronic primary insomnia. (external link)
• Reidun Ursin; Bjørn Bjorvatn (1998). Sleep-wake and EEG effects following adenosine A1 agonism and antagonism: Similarities and interactions with sleep-wake and EEG effects following a serotonin reuptake inhibitor in rats. (external link)
• Bjørn Bjorvatn; Fred Holsten; Håvard Skeidsvoll (2001). Periodiske beinbevegelser under søvn - kan og skal de behandles?. (external link)
• Elisabeth Flo; Ståle Pallesen; Nils Magerøy et al. (2012). Shift work disorder in nurses - assessment, prevalence and related health problems. (external link)
• Stand Fenimore Hiestand; Siri Waage; Ingeborg Forthun et al. (2024). Factors leading to excessive fatigue in nurses – a three-year follow-up study. (external link)
• CM Portas; Bjørn Bjorvatn; Snorre Fagerland et al. (1998). On-line detection of extracellular levels of serotonin in dosal raphe nucleus and frontal cortex over the sleep/wake cycle in the freely moving rat. (external link)
• Signe Karen Dørheim; Susan Niegel; Bjørn Bjorvatn et al. (2016). Personality and Perinatal Maternal Insomnia: A Study Across Childbirth. (external link)
• Pei Xue; Ilona Merikanto; Eva A. Delale et al. (2024). Associations between obesity, a composite risk score for probable long COVID, and sleep problems in SARS-CoV-2 vaccinated individuals. (external link)
• Ingvild Bjerknes Arnesen; Bjørn Bjorvatn; Ståle Pallesen et al. (2025). Insomnia in adolescent epidemiological studies: To what extent can the symptoms be explained by circadian factors?. (external link)
• Børge Sivertsen; Ståle Pallesen; Nick Glozier et al. (2014). Midlife insomnia and subsequent mortality. The Hordaland Health Study. (external link)
• Linn Nyjordet Evanger; Bjørn Bjorvatn; Ståle Pallesen et al. (2023). Later school start time is associated with longer school day sleep duration and less social jetlag among Norwegian high school students: Results from a large-scale, cross-sectional study. (external link)
• Bjørn Bjorvatn; Sandra Marian Dale; Ruth Hogstad-Erikstein et al. (2012). Self-reported sleep and health among Norwegian hospital nurses in intensive care units. (external link)
• Anette Harris; Hilde Gundersen; Pia Mørk Andreassen et al. (2017). A comparative study of sleep and mood between young elite athletes and age-matched controls. (external link)
• Ståle Pallesen; Øystein Vedaa; Erlend Sunde et al. (2025). The use and subjective experience of sleep apps and their relationship with personality characteristics among young adults. (external link)
• Øystein Vedaa; Ingvild W. Saxvig; Ane Wilhelmsen-Langeland et al. (2012). School start time, sleepiness and functioning in Norwegian adolescents. (external link)
• Børge Sivertsen; Siri Omvik; Sivert Straume et al. (2008). Clinical significance of periodic limb movement disorder (PLMD) in insomnia patients. (external link)
• Erik Zakariassen; Siri Waage; Anette Harris et al. (2019). Causes and management of sleepiness among pilots in a Norwegian and an Austrian air ambulance service—a comparative study. (external link)
• Lee Di Milia; Siri Waage; Ståle Pallesen et al. (2013). Shift work disorder in a random population sample : prevalence and comorbidities. (external link)
• Luigi Ferini-Strambi; Reto Auer; Bjørn Bjorvatn et al. (2021). Insomnia disorder: clinical and research challenges for the 21st century. (external link)
• Ingrid Nesdal Fossum; Linn Tinnesand Nordnes; Sunniva Straume Storemark et al. (2014). The association between use of electronic media in bed before going to sleep and insomnia symptoms, daytime sleepiness, morningness, and chronotype. (external link)
• Iris Mulders Steine; Bjørn Bjorvatn; Dagfinn Winje et al. (2020). Seksuelle overgrep i barndommen og arbeids­uførhet i voksen alder – Funn fra et norsk befolkningsutvalg. (external link)
• Ståle Pallesen; Hilde Gundersen; Morten Kristoffersen et al. (2017). The effects of sleep deprivation on soccer skills. (external link)
• Anners Lerdal; Kari Slåtten; Elisabeth Saghaug et al. (2016). Sleep among bereaved caregivers of patients admitted to hospice: a 1-year longitudinal pilot study. (external link)
• Ane Wilhelmsen-Langeland; Ingvild W. Saxvig; Ståle Pallesen et al. (2013). A randomized controlled trial with bright light and melatonin for the treatment of delayed sleep phase disorder: effects on subjective and objective sleepiness and cognitive function. (external link)
• Arne Fetveit; Bjørn Bjorvatn (2006). Sleep duration in nursing home pasients in associated with the severity of dementia. (external link)
• Janne Grønli; Bjørn Bjorvatn (2006). SOV:no: Nasjonalt Kompetansesenter for Søvnsykdommer. (external link)
• Teresa Maria Osland; Bjørn Bjorvatn; Vidar Martin Steen et al. (2011). Association study of a variable-number tandem repeat polymorphism in the clock gene PERIOD3 and chronotype in Norwegian university students. (external link)
• Tine Almenning Flaa; Bjørn Bjorvatn; Ståle Pallesen et al. (2020). Subjective and objective sleep among air ambulance personnel. (external link)
• Nicolas Melchior Frederic Øyane; Fred Holsten; Reidun Ursin et al. (2005). Seasonal variations in mood and behaviour associated with gender, annual income and education: The Hordaland Health Study. (external link)
• Ståle Pallesen; Inger Hilde Nordhus; Stine Hjelle Skelton et al. (2005). Bright light treatment has limited effect in subjects over 55 years with mild early morning awakening. (external link)
• Reidun Ursin; Bjørn Bjorvatn; Fred Holsten (2005). Sleep duration, subjective sleep habits of 40 to 45 year olds in the Hordaland Health Study. (external link)
• Ingvild West Saxvig; Ståle Pallesen; Børge Sivertsen et al. (2021). Sleep during COVID-19-related school lockdown, a longitudinal study among high school students. (external link)
• Iris Mulders Steine; Bjørn Bjorvatn; Dagfinn Winje et al. (2020). Faktorer som henger sammen med økt risiko for arbeidsuførhet blant personer utsatt for seksuelle overgrep i barndommen. (external link)
• Fred Holsten; Bjørn Bjorvatn (1997). Et alternativ ved psykiske lidelser med sesongvariasjon eller søvnforstyrrelser. (external link)
• Øystein Vedaa; Ståle Pallesen; Siri Waage et al. (2016). Short rest between shift intervals increases the risk of sick leave: a prospective registry study. (external link)
• Arne Fetveit; Jørund Straand; Bjørn Bjorvatn et al. (2019). Self-reported sleeplessness in 12,655 persons living in the north of Norway: The Tromsø Study. (external link)
• Bjørn Bjorvatn; Eivind Meland; Elisabeth Flo et al. (2017). High prevalence of insomnia and hypnotic use in patients visiting their general practitioner. (external link)
• Reidun Ursin; Fred Holsten; Bjørn Bjorvatn (2006). Søvn hos 40-45 åringer i Hordaland. (external link)
• Irene Voldsbekk; Atle Bjørnerud; Inge Rasmus Groote et al. (2022). Evidence for widespread alterations in cortical microstructure after 32 h of sleep deprivation. (external link)
• Knut Fuglesteg Forberg; Siri Waage; Bente Elisabeth Moen et al. (2010). Subjective and objective sleep and sleepiness among tunnel workers in an extreme and isolated environment: 10-h shifts, 21-day working period, at 78 degrees north. (external link)
• Øystein Vedaa; Ingebjørg Louise Rockwell Djupedal; Erling Svensen et al. (2022). Health-promoting work schedules: protocol for a large-scale cluster randomised controlled trial on the effects of a work schedule without quick returns on sickness absence among healthcare workers. (external link)
• Ingebjørg Louise Rockwell Djupedal; Ståle Pallesen; Anette Kristoffersen Harris et al. (2022). Changes in the Work Schedule of Nurses Related to the COVID-19 Pandemic and Its Relationship with Sleep and Turnover Intention. (external link)
• Anette Harris; Hilde Gundersen; Pia Mørk-Andreassen et al. (2015). Restricted use of electronic media, sleep, performance, and mood in high school athletes - a randomized trial. (external link)
• Børge Sivertsen; Simon Øverland; Bjørn Bjorvatn et al. (2009). Does insomnia predict sick leave? The Hordaland Health Study. (external link)
• Eirunn Thun; Stephanie Le Hellard; Teresa Maria Osland et al. (2016). Circadian clock gene variants and insomnia, sleepiness, and shift work disorder. (external link)
• Bente Elisabeth Moen; Valborg Baste; Tone Morken et al. (2015). Menstrual characteristics and night work among nurses. (external link)
• Eldbjørg Fiske; Chiara Maria Portas; Janne Grønli et al. (2008). Increased extracellular 5-HT but no change in sleep after perfusion of a 5-HT1A antagonist into the dorsal raphe nucleus of rats. (external link)
• Bjørn Bjorvatn; Fred Holsten (1997). Lysbehandling ved jet lag, nattarbeid og søvnlidelser. (external link)
• Susanne Hagatun; Øystein Vedaa; Tine Nordgreen et al. (2017). The short-term efficacy of an unguided internet-based cognitive-behavioral therapy for insomnia: A randomized controlled trial with a six-month nonrandomized follow-up. (external link)
• Bjørn Bjorvatn; CA Fornal; F.J. Martin et al. (1998). The putative selective 5-HT-1A antagonist p-MPPI blocks 5-HT-1A autoreceptors and increases serotonergic dorsal raphe unit activity in behaving cats. (external link)
• Gunnhild Johnsen Hjetland; Eirin Kolberg; Ståle Pallesen et al. (2021). Ambient bright light treatment improved proxy-rated sleep but not sleep measured by actigraphy in nursing home patients with dementia: a placebo-controlled randomised trial. (external link)
• Anders Kjellevold Storesund; Anders Johansson; Bjørn Bjorvatn et al. (2017). Oral appliance treatment outcome can be predicted by continuous positive airway pressure in moderate to severe obstructive sleep apnea. (external link)
• Ingvild Saksvik-Lehouillier; Bjørn Bjorvatn; Nils Magerøy et al. (2016). Hardiness, psychosocial factors and shift work tolerance among nurses – a 2-year follow-up study. (external link)
• Bjørn Bjorvatn; Ståle Pallesen (2004). Moderne behandling av søvnproblemer og vinterdepresjoner. (external link)
• Janne Grønli; Clive R. Evjen Bramham; Robert Murison et al. (2006). Chronic mild stress inhibits BDNF protein expression and CREB activation in the dentate gyrus but not in the hippocampus proper. (external link)
• Anette Harris; Siri Waage; Holger Ursin et al. (2010). Cortisol, reaction time test and health among offshore shift workers. (external link)
• Signe Karen Dørheim; Bjørn Bjorvatn; Malin M C Eberhard-Gran (2013). Sick leave during pregnancy: a longitudinal study of rates and risk factors in a Norwegian population. (external link)
• Bjørn Bjorvatn (2009). Søvnens mysterier. (external link)
• Göran Hajak; Jan Hedner; Mirjam Eglin et al. (2009). A 2-week efficacy and safety study of gaboxadol and zolpidem using electronic diaries in primary insomnia outpatients. (external link)
• Bjørn Bjorvatn; G. Kecklund; T. Åkerstedt (1998). Rapid adaptation to night work at an oil platform, but slow readaptation after returning home. (external link)
• Arne Fetveit; Jørund Straand; Bjørn Bjorvatn (2008). Sleep disturbances in an arctic population: The Tromso Study. (external link)
• Chiara Maria Portas; Bjørn Bjorvatn; Snorre Fagerland et al. (1998). On-line detection of extracellular levels of serotonin in dorsal raphe nucleus and frontal cortex over the sleep/wake cycle in the freely moving ra. (external link)
• Reidun Ursin; Bjørn Bjorvatn (1998). Sleep-wake and EEG effects following adenosine A1 agonism and antagonism: Similarities and interactions with sleep-wake and EEG effects following a serotonin reuptake inhibitor in rats. (external link)
• Kjersti Marie Blytt; Bjørn Bjorvatn; Bente Elisabeth Moen et al. (2022). The association between shift work disorder and turnover intention among nurses. (external link)
• Erlend Sunde; Jelena Mrdalj; Torhild Pedersen et al. (2020). Role of nocturnal light intensity on adaptation to three consecutive night shifts: a counterbalanced crossover study. (external link)
• Eldbjørg Fiske; Janne Grønli; Bjørn Bjorvatn et al. (2006). The effect of GABA(A) antagonist bicuculline on dorsal raphe nucleus and frontal cortex extracellular serotonin: A window on SWS and REM sleep modulation. (external link)
• Ingvild Saksvik-Lehouillier; Ståle Pallesen; Bjørn Bjorvatn et al. (2014). Towards a more comprehensive defnition of shift work tolerance. (external link)
• Hanne Marie Lunde; Tommy Frøseth Aae; William Indrevåg et al. (2012). Poor Sleep in Patients with Multiple Sclerosis. (external link)
• Kristine Marie Stangenes; Mari Hysing; Silje Katrine Elgen Fevang et al. (2018). Prenatal and neonatal factors predicting sleep problems in children born extremely preterm or with extremely low birthweight. (external link)
• Sunniva Straume Storemark; Ingrid Nesdal Fossum; Bjørn Bjorvatn et al. (2013). Personality factors predict sleep-related shift work tolerance in different shifts at 2-year follow-up: a prospective study. (external link)
• Iselin Reknes; Bjørn Bjorvatn; Ståle Einarsen et al. (2014). Nye funn om turnusarbeid. (external link)
• Siri Waage; Ståle Pallesen; Bente Elisabeth Moen et al. (2014). Predictors of shift work disorder among nurses: a longitudinal study. (external link)
• Ingvild West Saxvig; Linn Nyjordet Evanger; Ståle Pallesen et al. (2021). Circadian typology and implications for adolescent sleep health. Results from a large, cross-sectional, school-based study. (external link)
• Iris Mulders Steine; Dagfinn Winje; Inger Hilde Nordhus et al. (2016). Langvarig taushet om seksuelle overgrep : prediktorer og korrelater hos voksne som opplevde seksuelle overgrep som barn. (external link)
• Linn Nyjordet Evanger; Ståle Pallesen; Ingvild W. Saxvig et al. (2024). Associations between sleep duration, insomnia, depression, anxiety and registry-based school grades: A longitudinal study among high-school students. (external link)
• Elisabeth Flo; Bjørn Bjorvatn; Simon Folkard et al. (2012). A reliability and validity study of the Bergen shift work sleep questionnaire in nurses working three-shift rotations. (external link)
• Jon Arild Aakre; Jörn Schulz; Clive Ballard et al. (2023). Self-reported sleep fragmentation and sleep duration and their association with cognitive function in PROTECT, a large digital community-based cohort of people over 50. (external link)
• Serena Scarpelli; Alessandra De Santis; Valentina Alfonsi et al. (2022). The role of sleep and dreams in long-COVID. (external link)
• Bjørn Bjorvatn; Ståle Pallesen; Siri Waage et al. (2021). The effects of bright light treatment on subjective and objective sleepiness during three consecutive night shifts among hospital nurses-a counter-balanced placebo-controlled crossover study.. (external link)
• Kjersti Marie Blytt; Elisabeth Flo-Groeneboom; Ane Erdal et al. (2021). Sleep and its association with pain and depression in nursing home patients with advanced dementia -a cross-sectional study. (external link)
• Nicolas Øyane; Reidun Ursin; Ståle Pallesen et al. (2008). Self-reported seasonality is associated with complaints of sleep problems and deficient sleep duration: the Hordaland Health Study. (external link)
• Pål Jåbekk; Rein Magnus Jensen; Martin Blaauw Sandell et al. (2020). A randomized controlled pilot trial of sleep health education on body composition changes following 10 weeks resistance exercise.. (external link)
• Ragnhild Stokke Lundetræ; Ingvild W. Saxvig; Sverre Lehmann et al. (2020). Effect of continuous positive airway pressure on symptoms of anxiety and depression in patients with obstructive sleep apnea. (external link)
• Bjørn Bjorvatn; Ståle Pallesen (2009). Reduksjon av søvnproblemer ved bruk av selvhjelpsbok. (external link)
• Signe Karen Dørheim; Gunnar Tschudi Bondevik; Malin Eberhard-Gran et al. (2009). Sleep and depression in postpartum women: A population-based study. (external link)
• Janne Grønli; Ida Kristiansen Byrkjedal; Bjørn Bjorvatn et al. (2016). Reading from an iPad or from a book in bed: the impact on human sleep. A randomized controlled crossover trial. (external link)
• Chiara Maria Portas; Reidun Ursin; Bjørn Bjorvatn (2000). Serotonin and the sleep/wake cycle: Special emphasis on microdialysis studies. (external link)
• Eli Sørensen; Bjørn Bjorvatn; Reidun Ursin (2000). Sleep-wake effects following the selective 5-HT1a receptor antagonist p-MPPI in the freely moving rat. (external link)
• Signe Dørheim Ho-Yen; Signe Dørheim Ho-Yen; Gunnar Tschudi Bondevik et al. (2006). The prevalence of depressive symptoms in the postnatal period in Lalitpur district, Nepal. (external link)
• Bjørn Bjorvatn; Ina Marie Lunde Sagen; Nicolas Melchior Frederic Øyane et al. (2007). The association between sleep duration, body mass index and metabolic measures in the Hordaland Health Study. (external link)
• Bjørn Bjorvatn; Fred Holsten (1997). Lysbehandling ved jet lag, nattarbeid og søvnlidelser. (external link)
• Kjersti Marie Blytt; Bjørn Bjorvatn; Bettina Husebø et al. (2017). Clinically significant discrepancies between sleep problems assessed by standard clinical tools and actigraphy. (external link)
• Siri Waage; Ståle Pallesen; Bente Elisabeth Moen et al. (2018). Restless legs syndrome/Willis-Ekbom disease is prevalent in working nurses, but seems not to be associated with shift work schedules. (external link)
• Maria Fagerbakke Eldevik; Elisabeth Flo; Bente Elisabeth Moen et al. (2013). Insomnia, excessive sleepiness, excessive fatigue, anxiety, depression and shift work disorder in nurses having less than 11 hours in-between shifts. (external link)
• Kristian Løvås; Eystein Husebye; Fred Holsten et al. (2003). Sleep disturbances in patients with Addison's disease. (external link)
• Bjørn Bjorvatn (2003). Alternativer til sovemidler hos eldre. (external link)
• Ingvild W. Saxvig; Astri Lundervold; Janne Grønli et al. (2008). The effect of a REM sleep deprivation procedure on different aspects of memory function in humans. (external link)
• Torbjørn Flataker Lien; Ståle Pallesen; Bjørn Bjorvatn et al. (2014). Skiftarbeid og sykefravær blant sykepleiere. (external link)
• Bjørn Bjorvatn; CA Fornal; FJ Martín et al. (2000). Venlafaxine and its interaction with WAY 100635: effects on serotonergic unit activity and behavior in cats. (external link)
• Bjørn Bjorvatn; John Axelsson; Ståle Pallesen et al. (2020). The association between shift work and immunological biomarkers in nurses. (external link)
• Børge Sivertsen; Simon Overland; Dag Neckelmann et al. (2006). The long-term effect of insomnia on work disability - The HUNT-2 historical cohort study. (external link)
• Tea Lallukka; Simon Nygaard Øverland; P Haaramo et al. (2014). The joint contribution of pain and insomnia to sickness absence and disability retirement: a register-linkage study among Norwegian and Finnish employees. (external link)
• Bjørn Bjorvatn; T. F. Aarre; Anders Lund (1997). Nevrobiologiske mekanismer ved antidepressiv behandling. Betydningen av serotonerge autoreseptorer. (external link)
• Hege Andersen Amofah; Anders Brostrøm; Bengt Gotthard Anton Fridlund et al. (2016). Sleep in octogenarians during the postoperative phase after transcatheter or surgical aortic valve replacement. (external link)
• Corné A.M. Roelen; Martijn W. Heymans; Eirunn Thun et al. (2015). Predictive value of the SF-12 for sickness absence because of mental, musculoskeletal, and other somatic disorders. (external link)
• Bjørn Bjorvatn; Erlend Joramo Brevik; Astri Lundervold et al. (2017). Adults with attention deficit hyperactivity disorder report high symptom levels of troubled sleep, restless legs, and cataplexy. (external link)
• Kia Minna Hynninen; Ståle Pallesen; Jon Andrew Hardie et al. (2013). Insomnia symptoms, objectively measured sleep, and disease severity in chronic obstructive pulmonary disease outpatients. (external link)
• Eirin Fränkl; Serena Scarpelli; Michael R. Nadorff et al. (2021). How our Dreams Changed During the COVID-19 Pandemic: Effects and Correlates of Dream Recall Frequency - a Multinational Study on 19,355 Adults. (external link)
• Ulrik Leidland Opsahl; Morten Eirik Berge; Sverre Lehmann et al. (2020). Acoustic pharyngometry - A new method to facilitate oral appliance therapy. (external link)
• Hogne Vikanes Buchvold; Ståle Pallesen; Siri Waage et al. (2018). Shift work schedule and night work load: Effects on body mass index - A four-year longitudinal study. (external link)
• Frida Falskog; Ane Magnussen Landsem; Eivind Meland et al. (2021). Patients want their doctors' help to increase physical activity: a cross sectional study in general practice. (external link)
• Ingvild W. Saxvig; Bjørn Bjorvatn; Siri Waage (2023). Habitual Sleep Patterns and Chronic Sleep Problems in Relation to Sex, Age, and Circadian Preference in a Population-Based Sample of Norwegian Adults. (external link)
• Iselin Reknes; Ståle Einarsen; Ståle Pallesen et al. (2016). Exposure to bullying behaviors at work and subsequent symptoms of anxiety: The moderating role of individual coping style. (external link)
• Ingvild W. Saxvig; Ane Wilhelmsen-Langeland; Ståle Pallesen et al. (2013). Objective measures of sleep and dim light melatonin onset in adolescents and young adults with delayed sleep phase disorder compared to healthy controls. (external link)
• Ragnhild Stokke Lundetræ; Ingvild W. Saxvig; Harald Aurlien et al. (2021). Effect of Continuous Positive Airway Pressure on Symptoms and Prevalence of Insomnia in Patients With Obstructive Sleep Apnea: A Longitudinal Study. (external link)
• Henny Dyrberg; Bjørn Bjorvatn; Erik Roj Larsen (2022). Cognitive behavioral therapy for chronic insomnia in outpatients with major depression—A randomised controlled trial. (external link)
• Siri Waage; Anette Harris; Ståle Pallesen et al. (2012). Subjective and objective sleepiness among oil rig workers during three different shift schedules. (external link)
• Ilona Merikanto; Yves Dauvilliers; Frances Chung et al. (2022). Sleep symptoms are essential features of long-COVID – Comparing healthy controls with COVID-19 cases of different severity in the international COVID sleep study (ICOSS-II). (external link)
• Bjørn Bjorvatn; Jelena Mrdalj; Ingvild W. Saxvig et al. (2017). Age and sex differences in bedroom habits and bedroom preferences. (external link)
• Siri Waage; Ståle Pallesen; Øystein Vedaa et al. (2021). Sleep patterns among Norwegian nurses between the first and second wave of the COVID-19 pandemic. (external link)
• Ståle Pallesen; Bjørn Bjorvatn; Inger Hilde Nordhus et al. (2008). A new scale for measuring insomnia: the Bergen Insomnia Scale. (external link)
• Siri Waage; Bente Elisabeth Moen; Ståle Pallesen et al. (2009). Shift work disorder among oil rig workers in the North Sea. (external link)
• Atle Fretheim; Kari Håvelsrud; Signe Flottorp et al. (2007). The Effects of Mandatory Prescribing of Thiazides for Newly Treated, Uncomplicated Hypertension: Interrupted Time-Series Analysis. (external link)
• Ragnhild Stokke Lundetræ; Ingvild W. Saxvig; Ståle Pallesen et al. (2018). Prevalence of parasomnias in patients with obstructive sleep apnea. A registry-based cross-sectional study. (external link)
• Bjørn Bjorvatn; Knut-Arne Wensaas; Knut Erik Emberland et al. (2021). Restless legs syndrome - a study from general practice. (external link)
• Gunhild Nordbø Marthinsen; Sølvi Helseth; Milada Cvancarova Småstuen et al. (2024). A comparison of sleep, insomnia and health‑related quality of life between mothers and fathers of preterm versus full‑born infants: a longitudinal study from Norway. (external link)
• Cecilie Schou Andreassen; Bjørn Bjorvatn; Bente Elisabeth Moen et al. (2016). A longitudinal study of the relationship between the five-factor model of personality and workaholism. (external link)
• Geir Scott Brunborg; Rune Mentzoni; Helge Molde et al. (2011). The relationship between media use in the bedroom, sleep habits and symptoms of insomnia. (external link)
• Trygve Muller Jonassen; Tomas Mikal Eagan; Bjørn Bjorvatn et al. (2016). Associations between obstructive lung disease and symptoms of obstructive sleep apnoea in a general population. (external link)
• Maria Katsifaraki; Kristian Bernhard Nilsen; Jan Olav Christensen et al. (2018). Sleep duration mediates abdominal and lower-extremity pain after night work in nurses. (external link)
• Markku Partinen; Brigitte Holzinger; Charles M Morin et al. (2021). Sleep and daytime problems during the COVID-19 pandemic and effects of coronavirus infection, confinement and financial suffering: A multinational survey using a harmonised questionnaire. (external link)
• Janne Grønli; Eldbjørg Fiske; Robert Murison et al. (2007). Extracellular levels of serotonin and GABA in the hippocampus after chronic mild stress in rats. - A microdialysis study in an animal model of depression. (external link)
• Bjørn Bjorvatn; Reidun Ursin (1998). Changes in sleep and wakefulness following 5-HT1A ligands given systematically and locally in different brain regions. (external link)
• Bjørn Bjorvatn; Snorre Fagerland; Reidun Ursin (1998). EEG power densities (0.5-20.0 Hz) in different sleep/wake stages in rats. (external link)
• Bjørn Bjorvatn; Reidun Ursin (1998). Changes in sleep and wakefulness following 5-HT1A ligands given systemically and locally in different brain regions. (external link)
• Maria Katsifaraki; Kristian Bernhard Nilsen; Morten Wærsted et al. (2017). The association of sleepiness, insomnia, sleep disturbance and pain: a study amongst shiftworking nurses. (external link)
• Jelena Mrdalj; Åse Lundegaard Mattson; Robert Murison et al. (2014). Hypothermia after chronic mild stress exposure in rats with a history of postnatal maternal separations. (external link)
• SK Dørheim; GT Bondevik; Malin Eberhard-Gran et al. (2009). Subjective and objective sleep among depressed and non-depressed postnatal women. (external link)
• Willy Bjarne Eriksen; Bjørn Bjorvatn; Dag Bruusgaard et al. (2008). Work factors as predictors of poor sleep in nurses' aides. (external link)
• Siri Omvik; Ståle Pallesen; Bjørn Bjorvatn et al. (2010). Patient characteristics and predictors of sleep medication use. (external link)
• Eli Sørensen; Janne Grønli; Bjørn Bjorvatn et al. (2001). Sleep and waking following microdialysis perfusion of the selective 5-HT 1A receptor antagonist p-MPPI into the dorsal raphe nucleus in the freely moving rat. (external link)
• Brigitte Holzinger; Franziska Nierwetberg; Frances Chung et al. (2022). Has the COVID-19 Pandemic Traumatized Us Collectively? The Impact of the COVID-19 Pandemic on Mental Health and Sleep Factors via Traumatization: A Multinational Survey. (external link)
• Stand Fenimore Hiestand; Ingeborg Forthun; Siri Waage et al. (2023). Associations between excessive fatigue and pain, sleep, mental-health and work factors in Norwegian nurses. (external link)
• Eli Sørensen; Janne Grønli; Bjørn Bjorvatn et al. (2001). The selective 5-HT 1A receptor antagonist p-MPPI antagonizes sleep-waking and behavioural effects of 8-OH-DPAT in rats. (external link)
• Ulrik Leidland Opsahl; Morten Eirik Berge; Sverre Lehmann et al. (2024). Elastic Bands Improve Oral Appliance Treatment Effect on Obstructive Sleep Apnoea: A Randomised Crossover Trial. (external link)
• Frances Chung; Rida Waseem; Chi Pham et al. (2021). The association between high risk of sleep apnea, comorbidities, and risk of COVID-19: a population-based international harmonized study. (external link)
• Christian Benedict; Luiz Eduardo Mateus Brandão; Ilona Merikanto et al. (2021). Meal and Sleep Timing before and during the COVID-19 Pandemic: A Cross-Sectional Anonymous Survey Study from Sweden. (external link)
• Øystein Holmelid; Anette Harris; Ståle Pallesen et al. (2024). Acute effects of a simulated quick return on subjective sleepiness, mood, and cognitive performance: A laboratory crossover controlled trial. (external link)
• Øystein Ottesen Nødtvedt; Anita Lill Hansen; Bjørn Bjorvatn et al. (2017). The effects of kiwi fruit consumption in students with chronic insomnia symptoms: a randomized controlled trial. (external link)
• Yngvild Sørebø Danielsen; Ståle Pallesen; Kjell Morten Stormark et al. (2010). The relationship between school day sleep duration and body mass index in Norwegian children (aged 10-12). (external link)
• Brandy Solheim; Alexander Olsen; Håvard Kallestad et al. (2018). Cognitive performance in DSWPD patients upon awakening from habitual sleep compared with forced conventional sleep. (external link)
• Dagfinn Matre; Kristian Bernhard Nilsen; Maria Katsifaraki et al. (2019). Pain complaints are associated with quick returns and insomnia among Norwegian nurses, but do not difer between shift workers and day only workers. (external link)
• Bjørn Bjorvatn; Nils Magerøy; Bente Elisabeth Moen et al. (2015). Parasomnias are more frequent in shift workers than in day workers. (external link)
• Siri Waage; Ståle Pallesen; Bente Elisabeth Moen et al. (2021). Changes in work schedule affect the prevalence of shift work disorder among Norwegian nurses–a two year follow-up study. (external link)
• Kjersti Marie Blytt; Bettina Husebø; Elisabeth Flo et al. (2018). Long-term pain treatment did not improve sleep in nursing home patients with comorbid dementia and depression: A 13-week randomized placebo-controlled trial. (external link)
• Kristine Marie Stangenes; Silje Katrine Elgen Fevang; Jacob Holter Grundt et al. (2017). Children born extremely preterm had different sleeping habits at 11 years of age and more childhood sleep problems than term-born children. (external link)
• Bjørn Bjorvatn; TF Aarre; Anders Lund (1997). Neurbiologiske mekanismer ved antidepressiv behandling. (external link)
• Bjørn Bjorvatn; Guri Rørtveit; Ingrid Keilegavlen Rebnord et al. (2023). Self-reported short and long sleep duration, sleep debt and insomnia are associated with several types of infections: Results from the Norwegian practice-based research network in general practice – PraksisNett. (external link)
• Bjørn Bjorvatn; Kristine Marie Stangenes; Nicolas Melchior Frederic Øyane et al. (2006). Subjective and objective measures of adaptation and readaptation to night work on an oil rig in the North Sea. (external link)
• Gunnhild Sellevoll Hunskår; Bjørn Bjorvatn; Knut-Arne Wensaas et al. (2016). Excessive daytime sleepiness, sleep need and insomnia 3 years after Giardia infection: A cohort study. (external link)
• Mona Berthelsen; Ståle Pallesen; Nils Magerøy et al. (2015). Effects of psychological and social factors in shiftwork on symptoms of anxiety and depression in nurses: A 1-year follow-up. (external link)
• Ingeborg Forthun; Siri Waage; Ståle Pallesen et al. (2022). A shift to something better? A longitudinal study of work schedule and prescribed sleep medication use in nurses. (external link)
• Cecilie Schou Andreassen; Arnold B. Bakker; Bjørn Bjorvatn et al. (2017). Working conditions and individual differences are weakly associated with workaholism: A 2-3-year prospective study of shift-working nurses. (external link)
• Bjørn Bjorvatn; F Holsten; H Skeidsvoll (2001). Periodiske benbevegelser under søvn - kan og skal de behandles?. (external link)
• Kjersti Marie Blytt; Bjørn Bjorvatn; Bettina Husebø et al. (2018). Effects of pain treatment on sleep in nursing home patients with dementia and depression: A multicenter placebo-controlled randomized clinical trial. (external link)
• Ulrik Leidland Opsahl; Morten Eirik Berge; Sverre Lehmann et al. (2025). Prediction of non-responders to oral appliance treatment of obstructive sleep apnea: a pilot study. (external link)
• Øystein Vedaa; Elfrid Krossbakken; Ingse Dagny Grimsrud et al. (2016). Prospective study of predictors and consequences of insomnia: Personality, lifestyle, mental health, and work-related stressors. (external link)
• Bente E Moen; Siri Waage; Elena Ronda et al. (2014). Spontaneous abortions and shift work in a cohort of nurses in Norway. (external link)
• Brandy Solheim; Knut Langsrud; Håvard Kallestad et al. (2014). Difficult morning awakening from rapid eye movement sleep and impaired cognitive function in delayed sleep phase disorder patients. (external link)
• Charles M. Morin; Bjørn Bjorvatn; Frances Chung et al. (2021). Insomnia, anxiety, and depression during the COVID-19 pandemic: an international collaborative study. (external link)
• Ilona Merikanto; Yves Dauvilliers; Frances Chung et al. (2021). Disturbances in sleep, circadian rhythms and daytime functioning in relation to coronavirus infection and Long-COVID - A multinational ICOSS study. (external link)
• Bjørn Bjorvatn; Ståle Pallesen; Bente Elisabeth Moen et al. (2018). Migraine, tension-type headache and medication-overuse headache in a large population of shift working nurses: a cross-sectional study in Norway. (external link)
• Ståle Pallesen; Øystein Ottesen Nødtvedt; Ingvild W. Saxvig et al. (2016). A new light source (Valkee©) does not alter sleep-wake parameters and does not improve mood in phase delayed subjects. (external link)
• Espen Saxhaug Kristoffersen; Siri Waage; Ståle Pallesen et al. (2024). Changes in work schedule affect headache frequency among Norwegian nurses: A 3-year-follow-up study. (external link)
• Børge Sivertsen; Erla Björnsdóttir; Simon Nygaard Øverland et al. (2013). The joint contribution of insomnia and obstructive sleep apnea on sickness absence. (external link)
• Elisabeth Flo; Ståle Pallesen; Torbjørn Åkerstedt et al. (2013). Shift-related sleep problems vary according to work schedule. (external link)
• Oddgeir Friborg; Bjørn Bjorvatn; Benjamin Amponsah et al. (2012). Associations between seasonal variations in day length (photoperiod), sleep timing, sleep quality and mood: a comparison between Ghana (5 degrees) and Norway (69 degrees). (external link)
• Anders Baerheim; J.N Øren; Bjørn Bjorvatn et al. (2005). Tx-discs - no effect against subjective health complaints - A randomised controlled study. (external link)
• Janne Grønli; Robert Murison; Eldbjørg Fiske et al. (2005). Effects of chronic mild stress on sexual behavior, locomotor activity and consumption of sucrose and saccharine solutions. (external link)
• Ilona Merikanto; Laura Kortesoja; Christian Benedict et al. (2021). Evening-types show highest increase of sleep and mental health problems during the COVID-19 pandemic—multinational study on 19 267 adults. (external link)
• Maria Korman; Daria Zarina; Vadim Tkachev et al. (2024). Estimation bias and agreement limits between two common self-report methods of habitual sleep duration in epidemiological surveys. (external link)
• Eirunn Thun; Bjørn Bjorvatn; Torbjørn Torsheim et al. (2014). Night work and symptoms of anxiety and depression among nurses: A longitudinal study. (external link)
• Iris Mulders Steine; Brittany Nielsen; Patricia A. Porter et al. (2020). Predictors and correlates of lifetime and persistent non-suicidal self-injury and suicide attempts among adult survivors of childhood sexual abuse. (external link)
• Ståle Pallesen; Hilde Sofie Hamre; Nina Lang et al. (2020). Doxazosin for the treatment of nightmare disorder: A diary-based case study.. (external link)
• Markku Partinen; Bjørn Bjorvatn; Brigitte Holzinger et al. (2020). Sleep and circadian problems during the coronavirus disease 2019 (COVID-19) pandemic: the International COVID-19 Sleep Study (ICOSS).. (external link)
• Iris Mulders Steine; Anne Marita Milde; Bjørn Bjorvatn et al. (2012). Forekomsten av seksuelle overgrep i et representativt befolkningsutvalg i Norge. (external link)
• Erlend Sunde; Torhild Pedersen; Jelena Mrdalj et al. (2020). Blue-enriched white light improves performance but not subjective alertness and circadian adaptation during three consecutive simulated night shifts. (external link)
• Anders Baerheim; Bjørn Bjorvatn; Steinar Hunskaar (2006). Jordstråler – et begrep uten vitenskapelig grunnlag. (external link)
• Pei Xue; Ilona Merikanto; Frances Chung et al. (2023). Persistent short nighttime sleep duration is associated with a greater post-COVID risk in fully mRNA-vaccinated individuals. (external link)
• Raluca Mihaela Bercea; Traian Mihaescu; Cristian Cojocaru et al. (2015). Fatigue and serum testosterone in obstructive sleep apnea patients. (external link)
• Øystein Hetlevik; Gina Dorothea Garre-Fivelsdal; Bjørn Bjorvatn et al. (2019). Patient-reported depression treatment and future treatment preferences: an observational study in general practice. (external link)
• Nicolas Melchior Frederic Øyane; Ståle Pallesen; Bente Elisabeth Moen et al. (2013). Associations between night work and anxiety, depression, insomnia, sleepiness and fatigue in a sample of Norwegian nurses. (external link)
• Bjørn Bjorvatn; Kristine Marie Stangenes; Nicolas Øyane et al. (2007). Randomized placebo-controlled field study of the effects of bright light and melatonin in adaptation to night work. (external link)
• Karin Elisabeth Sundt Mjelle; Sverre Lehmann; Ingvild W. Saxvig et al. (2022). Association of Excessive Sleepiness, Pathological Fatigue, Depression, and Anxiety With Different Severity Levels of Obstructive Sleep Apnea. (external link)
• Brandy Solheim; Knut Langsrud; Håvard Kallestad et al. (2018). Sleep structure and awakening threshold in delayed sleep-wake phase disorder patients compared to healthy sleepers. (external link)
• Iselin Reknes; Ståle Pallesen; Nils Magerøy et al. (2014). Exposure to bullying behaviors as a predictor of mental health problems among Norwegian nurses: Results from the prospective SUSSH-survey. (external link)
• Trygve Müller Jonassen; Bjørn Bjorvatn; Ingvild W. Saxvig et al. (2022). Clinical information predicting severe obstructive sleep apnea: A cross-sectional study of patients waiting for sleep diagnostics. (external link)
• Bjørn Bjorvatn; G Kecklund; T Åkerstedt (1999). Bright light treatment used for adaptation to night work and re-adaptation back to day life. A field study at an oil platform in the North Sea. (external link)
• CA Fornal; FJ Martin; A Mendlin et al. (1999). Pindolol increases extracellular 5-HT while inhibiting serotonergic neuronal activity. (external link)
• Arne Fetveit; Bjørn Bjorvatn (2004). The effects of bright-light therapy on actigraphical measured sleep last for several weeks post-treatment. A study in a nursing home population. (external link)
• Janne Grønli; Robert Murison; Bjørn Bjorvatn et al. (2004). Chronic mild stress affects sucrose intake and sleep in rats. (external link)
• Børge Sivertsen; Siri Omvik; Ståle Pallesen et al. (2004). Søvnlidelser hos eldre som bruker sovemiddel hver kveld. (external link)
• Ingvild Berg Saksvik; Bjørn Bjorvatn; Allison G. Harvey et al. (2011). Adaptation and readaptation to different shift work schedules measured with sleep diary and actigraphy. (external link)
• Ståle Pallesen; Inger Hilde Nordhus; Siri Omvik et al. (2005). Pittsburgh Sleep Quality Index testpsykologi. (external link)
• Bjørn Bjorvatn; Ingvild W. Saxvig; Siri Waage et al. (2020). Self-reported seasonality is strongly associated with chronotype and weakly associated with latitude. (external link)
• Dag Neckelmann; Alvhild Alette Bjørkum; Bjørn Bjorvatn et al. (1996). Sleep and EEG power spectral effects of the 5-HT(1A) agonist/antagonist NAN-190 alone and in combination with citalopram. (external link)
• Arne Fetveit; Bjørn Bjorvatn (2005). Bright-light treatment reduces actigraphic measured daytime sleep in nursing home patients with dementia - A pilot study. (external link)
• Signe Dørheim Ho-Yen; Gunnar Tschudi Bondevik; Malin Eberhard-Gran et al. (2009). Sleep and depression in postpartum women: A population-based study. (external link)
• Jenni Hellesøy Søbstad; Ståle Pallesen; Bjørn Bjorvatn et al. (2021). Predictors of turnover intention among Norwegian nurses: A cohort study. (external link)
• Bjørn Bjorvatn; Arne Fetveit (2012). Søvnproblemer blant eldre. (external link)
• Jonas R. Kunst; Gøril Kvamme Løset; Daniel Hosøy et al. (2014). The relationship between shift work schedules and spillover in a sample of nurses. (external link)
• Bjørn Bjorvatn; G Kecklund; T Åkerstedt (1999). Bright light treatment used for adaption to night work and re-adaption back to day life. A field study at an oil platform in the North Sea. (external link)
• CA Fornal; FJ Martin; A Mendlin et al. (1999). Pindolol increases extracellular 5-HT while inhibiting serotonergic neuronal activity. (external link)
• Ståle Pallesen; Inger Hilde Nordhus; Bjørn Bjorvatn (2010). Ten-year trends in insomnia prevalence in Norway. (external link)
• Ståle Pallesen; Janne Grønli; Kenneth Myhre et al. (2018). A pilot study of impulse radio ultra wideband radar technology as a new tool for sleep assessment. (external link)
• Ingvild W. Saxvig; Bjørn Bjorvatn; Mari Hysing et al. (2020). Sleep in older adolescents. Results from a large cross-sectional, population-based study. (external link)
• Inger Sofie Lindberg Olufsen; Marie Ellingsen Sørensen; Bjørn Bjorvatn (2020). Nye diagnosekriterier for insomni og sammenhengen mellom insomni, angst og depresjon. (external link)
• Arvid Skjerve; Fred Holsten; Dag Aarsland et al. (2004). Improvement in behavioral symptoms and advance of activity acrophase after short term bright light treatment in severe dementia. (external link)
• Arvid Skjerve; Bjørn Bjorvatn; Fred Holsten (2004). Light therapy for behavioral and psychological symptoms of dementia. (external link)
• Kjersti Gjerde; Sverre Lehmann; Bjørn Bjorvatn et al. (2021). Partner perceptions are associated with objective sensor-measured adherence to oral appliance therapy in obstructive sleep apnea. (external link)
• Corné A.M. Roelen; Marieke F.A. van Hoffen; Siri Waage et al. (2017). Psychosocial work environment and mental health-related long-term sickness absence among nurses. (external link)
• Bjørn Bjorvatn; Dag Neckelmann; Alvhild Alette Bjørkum et al. (1996). Hypothermia and the 5-HT syndrome induced by CGS 12066B, independently of 5-HT(1B) receptor activation. (external link)
• Dag Neckelmann; Bjørn Bjorvatn; Alvhild Alette Bjørkum et al. (1996). Citalopram: differential sleep/wake and EEG power spectrum effects after single dose and chronic administration. (external link)
• Arne Fetveit; Bjørn Bjorvatn (2005). Søvnforstyrrelser hos sykehjemspasienter praktiske behandlingsråd. (external link)
• Arne Fetveit; Bjørn Bjorvatn (2005). Lysbehandling mot søvnvansker i sykehjem et ikke-farmakologisk alternativ. (external link)
• Nicolas Melchior Frederic Øyane; Bjørn Bjorvatn (2005). Sleep disturbances in adolescents and young adults with autism and Asperger syndrome. (external link)
• Bjørn Bjorvatn; Lena Leissner; Jan Ulfberg et al. (2005). Prevalence, severity and risk factors of restless legs syndrome in the general adult population in two Scandinavian countries. (external link)
• Ståle Pallesen; Eirunn Thun; Siri Waage et al. (2021). Stability and Change of the Personality Traits Languidity and Flexibility in a Sample of Nurses: A 7–8 Years Follow-Up Study. (external link)
• Torhild Anita Sørengaard; Håvard Rudi Karlsen; Eva Langvik et al. (2019). Insomnia as a partial mediator of the relationship between personality and future symptoms of anxiety and depression among nurses. (external link)
• Ingvild W. Saxvig; Ståle Pallesen; Ane Wilhelmsen-Langeland et al. (2012). Prevalence and correlates of delayed sleep phase in high school students. (external link)
• Corné A.M. Roelen; Willem van Rhenen; Wilmar B. Schaufeli et al. (2014). Mental and physical health-related functioning mediates between psychological job demands and sickness absence among nurses. (external link)
• Børge Sivertsen; Siri Omvik; Ståle Pallesen et al. (2009). Sleep and sleep disorders in chronic users of zopiclone and drug-free insomniacs. (external link)
• Signe Dørheim Ho-Yen; Gunnar Tschudi Bondevik; Malin M C Eberhard-Gran et al. (2007). Factors associated with depressive symptoms among postnatal women in Nepal. (external link)
• Fred Holsten; Bjørn Bjorvatn (1997). Lysbehandling ved jet lag, nattarbeid og søvnlidelser. (external link)
• Ragnhild L. Tveit; Sverre Lehmann; Bjørn Bjorvatn (2018). Prevalence of several somatic diseases depends on the presence and severity of obstructive sleep apnea. (external link)
• Bjørn Bjorvatn; Ståle Pallesen; Ingvild W. Saxvig et al. (2021). Daylight Saving Time preferences in Norway: Do individual chronotype and home address’ latitude and longitude matter?. (external link)
• Bjørn Bjorvatn; CA Fornal; FJ Martin et al. (1998). The 5-HT1A receptor antagonist p-MPPI blocks 5-HT1A autoreceptors and increases dorsal raphe unit activity in awake cats. (external link)
• Bjørn Bjorvatn; G Kecklund; T Åkerstedt (1998). Rapid adaptation to night work at an oil platform, but slow readaptation after returning home. (external link)
• Espen Saxhaug Kristoffersen; Ståle Pallesen; Siri Waage et al. (2024). The long-term effect of work schedule, shift work disorder, insomnia and restless legs syndrome on headache among nurses: A prospective longitudinal cohort study. (external link)
• Tomi Sarkanen; Markku Partinen; Bjørn Bjorvatn et al. (2023). Association between hypersomnolence and the COVID-19 pandemic: The International COVID-19 Sleep Study (ICOSS). (external link)
• Corné A.M. Roelen; Martijn W. Heymans; Jos W.R. Twisk et al. (2014). Updating and prospective validation of a prognostic model for high sickness absence. (external link)
• Thomas Mildestvedt; Vibeke Valen Herikstad; Ida Undheim et al. (2018). Factors associated with self-rated health in primary care. (external link)
• Signe Karen Dørheim; Bjørn Bjorvatn; Malin M C Eberhard-Gran (2012). Insomnia and depressive symptoms in late pregnancy: a population-based study. (external link)
• Oddgeir Friborg; Bjørn Bjorvatn; Benjamin Amponsah et al. (2011). Associations between seasonal variations in day length (photoperiod), sleep timing, sleep quality and mood: a comparison between Ghana (5°) and Norway (69°). (external link)
• Bjørn Bjorvatn; Eldbjørg Fiske; Ståle Pallesen (2011). A self-help book is better than sleep hygiene advice for insomnia: a randomized controlled comparative study. (external link)
• Corné A.M. Roelen; Ute Bültmann; Johan Groothoff et al. (2013). Physical and mental fatigue as predictors of sickness absence among Norwegian nurses. (external link)
• Tone Fidje Blågestad; Inger Hilde Nordhus; Janne Grønli et al. (2015). Prescription trajectories and effect of total hip arthroplasty on the use of analgesics, hypnotics, antidepressants, and anxiolytics: Results from a population of total hip arthroplasty patients. (external link)
• Børge Sivertsen; Inger Hilde Nordhus; Bjørn Bjorvatn et al. (2010). Sleep problems in general practice. A national survey of assessment and treatment routines of GPs in Norway. (external link)
• Kentaro Matsui; Frances Chung; Adrijana Koscec Bjelajac et al. (2023). Associations between changes in habitual sleep duration and lower self-rated health among COVID-19 survivors: findings from a survey across 16 countries/regions. (external link)
• Bjørn Bjorvatn; Reidun Ursin (1998). Changes in sleep wakefulness following 5-HT1A ligands given systematically and locally in different brain regions. (external link)
• Bjørn Bjorvatn; Snorre Fagerland; Reidun Ursin (1998). EEG power densities (0.5 - 20.0 Hz) in different sleep/wake stages in rats. (external link)
• Iris Mulders Steine; Dagfinn Winje; John H. Krystal et al. (2017). Cumulative childhood maltreatment and its dose-response relation with adult symptomatology: Findings in a sample of adult survivors of sexual abuse. (external link)
• Børge Sivertsen; Siri Omvik; Ståle Pallesen et al. (2006). Cognitive behavioral therapy vs zopiclone for treatment of chronic primary insomnia in older adults - A randomized controlled trial. (external link)
• Corné A.M. Roelen; Martijn W. Heymans; Jos W.R. Twisk et al. (2015). Health measures in prediction models for high sickness absence: Single-item self-rated health versus multi-item SF-12. (external link)
• Luiz Eduardo Mateus Brandão; Teemu Martikainen; Ilona Merikanto et al. (2021). Social jetlag changes during the COVID-19 pandemic as a predictor of insomnia - a multi-national survey study. (external link)
• Sahrai Saeed; Synnøve Andrea Romarheim; Giuseppe Mancia et al. (2022). Characteristics of hypertension and arterial stiffness in obstructive sleep apnea: A Scandinavian experience from a prospective study of 6408 normotensive and hypertensive patients. (external link)
• Serena Scarpelli; Michael R. Nadorff; Bjørn Bjorvatn et al. (2022). Nightmares in People with COVID-19: Did Coronavirus Infect Our Dreams?. (external link)
• Noemi Cioffi; Esperanza Diaz Perez; Elisabeth Marie Strømme et al. (2024). Food insecurity in Norway: A cross-sectional study among patients visiting their general practitioner. (external link)
• Siri Waage; Ståle Pallesen; Bente Elisabeth Moen et al. (2010). Shift work and age in the offshore petroleum industry. (external link)
• Nicolas Øyane; Reidun Ursin; Ståle Pallesen et al. (2010). Increased health risk in subjects with high self-reported seasonality. (external link)
• Bjørn Bjorvatn; Ilona Merikanto; Catia Reis et al. (2022). Shift workers are at increased risk of severe COVID-19 compared with day workers: Results from the international COVID sleep study (ICOSS) of 7141 workers. (external link)
• Anne Helene Garde; Luise Begtrup; Bjørn Bjorvatn et al. (2020). How to schedule night shift work in order to reduce health and safety risks. (external link)
• Eemil Partinen; Yuichi Inoue; Mariusz Sieminski et al. (2024). Restless legs symptoms increased during COVID-19 pandemic. International ICOSS-survey. (external link)
• Iris Mulders Steine; Jens Christoffer Skogen; John H. Krystal et al. (2019). Insomnia symptom trajectories among adult survivors of childhood sexual abuse: A longitudinal study. (external link)
• Jan Ulfberg; Bjørn Bjorvatn; Lena Leissner et al. (2007). Comorbidity in restless legs syndrome among a sample of Swedish adults. (external link)
• Mona Berthelsen; Ståle Pallesen; Bjørn Bjorvatn et al. (2015). Shift schedules, work factors, and mental health among onshore and offshore workers in the Norwegian petroleum industry. (external link)
• Arne Fetveit; Bjørn Bjorvatn (2002). Behandling av søvnforstyrrelser hos personer med demens - med vekt på lysbehandling. (external link)
• Bjørn Bjorvatn (2002). Søvn og søvnproblemer. (external link)
• Arne Fetveit; Bjørn Bjorvatn (2002). Søvnforstyrrelser hos demente. (external link)
• Arne Fetveit; Bjørn Bjorvatn (2002). Sleep disturbances among nursing home residents. (external link)
• Øystein Holmelid; Ståle Pallesen; Bjørn Bjorvatn et al. (2024). Simulated quick returns in a laboratory context and effects on sleep and pre-sleep arousal between shifts: a crossover controlled trial. (external link)
• Bjørn Bjorvatn; Siri Waage; Ståle Pallesen (2018). The association between insomnia and bedroom habits and bedroom characteristics: an exploratory cross-sectional study of a representative sample of adults. (external link)
• Ane Wilhelmsen-Langeland; Ingrid Dundas; Ingvild W. Saxvig et al. (2012). Psychosocial challenges related to Delayed Sleep Phase Disorder. (external link)
• Ingeborg Forthun; Guri Rørtveit; Guro Haugen Fossum et al. (2023). Søvnforstyrrelser og forskrivning av hypnotika i allmennpraksis – en PraksisNett-studie. (external link)
• Sunniva Torsvik; Bjørn Bjorvatn; Knut Eirik Ringheim Eliassen et al. (2022). Prevalence of insomnia and hypnotic use in Norwegian patients visiting their general practitioner. (external link)
• Bjørn Bjorvatn (2000). Langvarige søvnvansker - kan de behandles?. (external link)
• Tine Almenning Flaa; Bjørn Bjorvatn; Ståle Pallesen et al. (2022). Sleep and Sleepiness Measured by Diaries and Actigraphy among Norwegian and Austrian Helicopter Emergency Medical Service (HEMS) Pilots. (external link)
• Elfrid Krossbakken; Torbjørn Torsheim; Rune Aune Mentzoni et al. (2018). The effectiveness of a parental guide for prevention of problematic video gaming in children: A public health randomized controlled intervention study. (external link)
• Linda Ernstsen; Ekaterina Zotcheva; Xuemei Sui et al. (2022). Association Between Cardiorespiratory Fitness and Incident Purchase of Hypnotic Drugs in Adults: The HUNT Study. (external link)
• Ingebjørg Louise Rockwell Djupedal; Anette Harris; Erling Svensen et al. (2024). Effects of a work schedule with abated quick returns on insomnia, sleepiness and work-related fatigue: results from a large-scale cluster randomized controlled trial. (external link)
• Ståle Pallesen; Bjørn Bjorvatn; Inger Hilde Nordhus et al. (2002). Valeriana som sovemiddel?. (external link)
• Øystein Vedaa; Anette Harris; Eilin K. Erevik et al. (2019). Short rest between shifts (quick returns) and night work is associated with work-related accidents. (external link)
• Ståle Pallesen; Siri Waage; Eirunn Thun et al. (2019). A national survey on how sexual activity is perceived to be associated with sleep. (external link)
• Siri Waage; Magnus Odeen; Bjørn Bjorvatn et al. (2010). Still healthy after extended work hours? Ten hours shift, twenty-one days working period for tunnel workers. (external link)
• Alvhild Alette Bjørkum; Ståle Pallesen; F Holsten et al. (2004). Skiftarbeid og ulykker - relevans for offshoreindustrien. (external link)
• Ståle Pallesen; Fred Holsten; Alvhild Alette Bjørkum et al. (2004). Søvnvansker ved nattarbeid, et problem for offshoreindustrien?. (external link)
• Fred Holsten; Bjørn Bjorvatn (1997). Lysbehandling ved vinterdepresjoner, andre psykiske lidelser og døgnvillhet ved Mb. Alzheimer. (external link)
• Erlend Sunde; Jelena Mrdalj; Torhild Thue Pedersen et al. (2022). Bright light exposure during simulated night work improves cognitive flexibility. (external link)
• Tine Almenning Flaa; Anette Harris; Bjørn Bjorvatn et al. (2019). Sleepiness among personnel in the Norwegian Air Ambulance Service. (external link)
• Jolanda A. H. Schreuder; Corné A. M. Roelen; JW Groothofff et al. (2012). Coping styles relate to health and work environment of Norwegian and Deutch hospital nurses: a comparative study. (external link)
• Bjørn Bjorvatn; Thomas Berge; Sverre Lehmann et al. (2018). No effect of a self-help book for insomnia in patients with obstructive sleep apnea and comorbid chronic insomnia – a randomized controlled trial.. (external link)
• Bjørn Bjorvatn; Narvini Rajakulendren; Sverre Lehmann et al. (2018). Increased severity of obstructive sleep apnea is associated with less anxiety and depression. (external link)
• Courtney J. Bolstad; Brigitte Holzinger; Serena Scarpelli et al. (2024). Nightmare frequency is a risk factor for suicidal ideation during the COVID-19 pandemic. (external link)
• Ingeborg Forthun; Siri Waage; Ståle Pallesen et al. (2022). Sykepleiere sover dårlig og bruker stadig mer sovemedisiner. (external link)
• Ingeborg Forthun; Siri Waage; Ståle Pallesen et al. (2021). Sleep medication and melatonin use among Norwegian nurses – A cross-sectional study. (external link)

Study protocol

• Jon Arild Aakre; Bjørn Bjorvatn; Martha Therese Gjestsen et al. (2026). Preventing and Treating Insomnia Symptoms in Midlife and Older Adults (ASLEEP): Protocol for a Randomized Controlled Trial Using the PROTECT Norge Infrastructure. (external link)
• Ane Wilhelmsen-Langeland; Berge Osnes; Michael Gradisar et al. (2025). Group bright light therapy compared to treatment as usual for delayed sleep-wake phase disorder among patients in psychiatric care (the SIP trials): a protocol for a pragmatic, randomised controlled trial. (external link)
• Ane Wilhelmsen-Langeland; Ingvild W. Saxvig; Michael Gradisar et al. (2025). Group cognitive behavioural therapy for insomnia compared with treatment as usual for sleep problems in psychiatric care (the SIP trials): a protocol for a pragmatic, randomised controlled trial. (external link)

Conference poster

• Bjarte Birkeland Kysnes; Anette Harris; Siri Waage et al. (2025). Associations of Shift Work Patterns With Work-Related Accidents and Dozing Off: Combining Objective Working-Time Registers and Retrospective Questionnaire Data. (external link)
• Anette Harris; Ståle Pallesen; Øystein Vedaa et al. (2025). The impact of moral stress on turnover intention in shift-working nurses: Test of a moderated mediation model. (external link)
• Siri Waage; Anette Harris; Ståle Pallesen et al. (2025). A randomized controlled trial on the effect of a self-help book for shift work disorder. (external link)
• Tine Almenning Flaa; Siri Waage; Ståle Pallesen et al. (2025). Associations between sleep debt and work characteristics, depression, anxiety, and insomnia among nurses in Norway. (external link)
• Øystein Holmelid; Ståle Pallesen; Bjørn Bjorvatn et al. (2024). Simulated Quick Returns in a Laboratory Context. Effects on Pre-Sleep Arousal, Sleep, Mood, and Cognitive Performance: A Crossover Controlled Trial. (external link)
• Gunnhild Johnsen Hjetland; Eirin Kolberg; Ståle Pallesen et al. (2020). Ambient bright light treatment improved subjectively measured sleep but not sleep measured by actigraphy in nursing home patients with dementia: A placebo-controlled randomized trial. (external link)
• Reidun Ursin; Bjørn Bjorvatn; Fred Holsten (2001). Sleep and sleep problems in 40-45 year olds in a Norwegian county. (external link)
• Fred Holsten; Bjørn Bjorvatn; Reidun Ursin (2001). Seasonality as measured by the global seasonality score in 40-45 year old men and women in a Norwegian county. (external link)
• Reidun Ursin; Bjørn Bjorvatn; Fred Holsten (2001). Sleep and sleep problems in 40-45 year olds in a Norwegian county. (external link)
• Jelena Mrdalj; Erlend Sunde; Torhild Pedersen et al. (2018). Effects of bright light on sleepiness and cognitive performance during simulated night shift work.. (external link)
• Jelena Mrdalj; Robert Murison; Anne Marita Milde et al. (2010). Chronic mild stress alters body temperature rhythm and induces depression-like symptoms in rats postnatally exposed to long maternal separations. (external link)
• Anne Marie Kinn; Bjørn Bjorvatn; Jelena Mrdalj et al. (2010). A study of long-term effects on body temperature rhythm after two exposures to social defeat in rats. (external link)
• Elisabeth Flo; Guy Notelaers; Bjørn Bjorvatn et al. (2010). Shift work disorder and its relation to reduced Health-related quality of life. (external link)
• Janne Grønli; Robert Murison; Bjørn Bjorvatn et al. (2002). Sleep/wake effect after chronic mild stress in rats. (external link)
• Janne Grønli; Robert Murison; Bjørn Bjorvatn et al. (2001). Sleep/wake effect after chronic mild stress in rats. (external link)
• Reidun Ursin; Bjørn Bjorvatn; Fred Holsten (2002). Sleep characteristics in 40-45 year olds in Hordaland county, Norway. (external link)
• Siri Omvik; Børge Sivertsen; Ståle Pallesen et al. (2005). Predictors of outcome in cognitive and hypnotic treatment of insomnia in the elderly. (external link)
• Signe K Dørheim; Gunnar Tschudi Bondevik; Malin Eberhard-Gran et al. (2008). Risk factors for poor sleep and depression among postnatal women, a population based questionnaire study supplemented by sleep diary and actigraphy. (external link)
• Malika Elise Hansen; Silje Mæland; Lars T. Fadnes et al. (2023). Light exposure, sleep quality, and sleepiness as predictors of memory decline in older adults: A cohort study from Norway. (external link)
• Kjersti Marie Blytt; Ståle Pallesen; Siri Waage et al. (2022). The effects of bright light treatment on sleepiness during three consecutive night shifts among hospital nurses with insomnia – secondary analyses: A counter-balanced placebo-controlled crossover study. (external link)
• Torhild Anita Sørengaard; Eva Langvik; Ståle Pallesen et al. (2018). Personality and Insomnia as Predictors of Anxiety and Depression among Norwegian Nurses: The SUSSH Study. (external link)
• Kjersti Marie Blytt; Bjørn Bjorvatn; Bente Elisabeth Moen et al. (2020). The association between shift work disorder and turnover intention among nurses. (external link)
• Siri Omvik; Børge Sivertsen; Ståle Pallesen et al. (2007). Quality of life in insomnia. Treatment outcome of a randomized controlled trial comparing CBT and Zopiclone. (external link)
• Siri Omvik; Ståle Pallesen; Inger Hilde Nordhus et al. (2004). Reaction to sleeplessness and the impact of trait worry: an experimental study. (external link)
• Børge Sivertsen; Siri Omvik; Ståle Pallesen et al. (2004). The prevalence of sleep disorders among elderly chronic hypnotic users. (external link)
• Børge Sivertsen; Siri Omvik; Ståle Pallesen et al. (2004). Sleep disorders among elderly with chronic use of hypnotics. (external link)
• Erlend Joramo Brevik; Astri Lundervold; Anne Halmøy et al. (2016). Insomni hos voksne pasienter med ADHD – betydningen av symptomdomener og farmakologisk behandling. (external link)
• Knut-Arne Wensaas; Sverre Litleskare; Guri Rørtveit et al. (2018). Irritable bowel syndrome, chronic fatigue and pain in a Norwegian primary care population. (external link)
• Fred Holsten; Bjørn Bjorvatn; Reidun Ursin (2001). Seasonality as measured by the global seasonality score in 40-45 year old men and women in a Norwegian county. (external link)
• Bjørn Bjorvatn; Janne Grønli; Frøydis Hamre et al. (2001). Effects of sleep deprivation on extracellular serotonin in the hippocampus and frontal cortex of the rat. (external link)
• M.F. Nicholas; Nicolas Melchior Frederic Øyane; Fred Holsten et al. (2005). Sleep complaints more common among subjects with high seasonality. (external link)
• Bjørn Bjorvatn; Jelena Mrdalj; Ingvild W. Saxvig et al. (2016). Use of electronic media in bed and reading in bed after bedtime – Age and sex differences in a representative adult population.. (external link)
• Elisabeth Flo; Ståle Pallesen; Bjørn Bjorvatn (2014). Insomnia and non-restorative sleep. (external link)
• Hege Andersen Amofah; Anders Broström; Bengt Gotthard Anton Fridlund et al. (2014). Self-reported sleep and insomnia, and sleep and wake pattern, in octogenarians after surgical or transcatheter aortic valve replacement.. (external link)
• Kari Slåtten; Carol L. Gay; Elisabeth Saghaug et al. (2015). Sleep among Bereaved Caregivers of Patients Admitted to Hospice: A 1-Year Longitudinal Pilot Study. (external link)
• Hege Andersen Amofah; Anders Broström; Bengt Gotthard Anton Fridlund et al. (2016). Gender differences regarding in-hospital sleep-wake pattern in octogenarians during the early postoperative phase after aortic valve therapy.. (external link)
• Erlend Joramo Brevik; Astri Lundervold; Anne Halmøy et al. (2016). Insomnia in adult ADHD patients. Role of clinical subtypes and stimulant treatment. (external link)
• Hege Andersen Amofah; Anders Broström; Bengt Gotthard Anton Fridlund et al. (2015). Sleep and wake pattern in octogenarians after surgical or transcatheter aortic valve replacement.. (external link)
• Siri Waage; Bjørn Bjorvatn; Magnus Odeen et al. (2004). Health effects of 21 days shift periods and long work hours in an isolated and extreme environment. (external link)
• V Mundal; Bjørn Bjorvatn (1997). Sleep and waking following microdialysis perfusion of a 5-HT antagonist into the dorsal raphe nucleus in rats. (external link)
• CM Portas; Bjørn Bjorvatn; S Fagerland et al. (1997). Extracellular 5-HT levels in DRN over the sleep/wake cycle: A microdialysis study in the freely moving rat. (external link)
• Kari Slåtten; Carol L. Gay; Saghaug Elisabeth Anna et al. (2015). Beskrivelse av søvn hos etterlatte pårørende til pasienter med kreft. En ett-årig longitudinell pilotstudie.. (external link)
• Iselin Reknes; Ståle Pallesen; Nils Magerøy et al. (2013). Workplace bullying as a predictor of mental health problems in nurses. (external link)
• Jelena Mrdalj; Robert Murison; Anne Marita Milde et al. (2010). Altered Body Temperature Rhythm and Depression-like Symptoms following Early and Later Life Stress in Rats. (external link)
• Jelena Mrdalj; Robert Murison; Anne Marita Milde et al. (2010). Chronic mild stress alters body temperature rhythm and induces depression-like symptoms in rats postnatally exposed to long maternal separation. (external link)
• Kjersti Marie Blytt; Elisabeth Flo; Ane Erdal et al. (2019). Pain, depression and their association with sleep in nursing home patients with advanced dementia. (external link)
• Eli Sørensen; Janne Grønli; Bjørn Bjorvatn et al. (1999). The effect of a selective 5-HT-1A antagonist on waking levels of serotonin in hippocampus in rats. (external link)
• Eli Sørensen; Bjørn Bjorvatn; Alvhild Alette Bjørkum et al. (2000). Sleep and waking following perfusion of a selective 5-HT-1a antagonist in the dorsal raphe nucleus in rats. (external link)
• Ingebjørg Louise Rockwell Djupedal; Ståle Pallesen; Anette Kristoffersen Harris et al. (2022). Shift work, sleep and turnover intention during the COVID-19 pandemic. (external link)
• Bjørn Bjorvatn; Eivind Meland; Elisabeth Flo et al. (2015). High prevalence of DSM-5/ICSD-3 insomnia, self-reported sleep problems, and hypnotic use in patients visiting their general practitioner.. (external link)
• Bjørn Bjorvatn; Janne Grønli; Ståle Pallesen (2009). Parasomnias in the general population. (external link)
• Iselin Reknes; Guy Notelaers; Ståle Pallesen et al. (2015). Bullying from colleagues and aggression from patients – are there two sides to the story?. (external link)
• Janne Grønli; Robert Murison; Anne Marita Milde et al. (2011). Animal model of early and later life stress alters body temperature rhythm and induces depression-like symptoms. (external link)
• Reidun Ursin; Janne Grønli; Eli Sørensen et al. (2000). A single dose of the adenosine A1 antagonist 8-cyclopentyl-theofylline (CPT) increases hippocampal serotonin during waking in rats as measured by microdialysis. (external link)
• Arvid Skjerve; Fred Holsten; Dag Aarsland et al. (2000). Bright light treatment for sleep and behavioural disturbances in severe dementia. (external link)
• Kjersti Marie Blytt; Bjørn Bjorvatn; Bettina Husebø et al. (2016). "Sleep in Nursing Home Patients: A Cross-sectional Study Using Actigraphic and Informant-observed Assessments of Sleep Disturbances". (external link)
• Janne Grønli; Robert Murison; Bjørn Bjorvatn et al. (2003). Chronic Mild Stress in Rats Increase REM sleep and Sleep fragmentation and decrease Sucrose Intake. (external link)

Professional article

• Siri Waage; Ståle Pallesen; Anette Harris et al. (2025). Søvnproblemer øker hodepine og fatigue hos sykepleiere. (external link)
• Sabine Ruths; Bjørn Bjorvatn (2022). Forskningen etter tusenårsskiftet (2003-2021). (external link)
• Bjørn Bjorvatn; Siri Waage; Ingebjørg Louise Rockwell Djupedal et al. (2023). Hva sier vitenskapen om sykepleierens helse? Her er en oppsummering.. (external link)
• Bjørn Bjorvatn; Håvard Kallestad; Knut Langsrud et al. (2023). Nasjonal anbefaling for utredning og behandling av døgnrytmelidelser. (external link)
• Anders Johansson; Kjersti Gjerde; Sverre Lehmann et al. (2014). Skinnebehandling mot søvnapnè. (external link)
• Israel Paul Nyarubeli; Elise Victoria Tørdal; Bente Elisabeth Moen et al. (2025). Non-Standard Work Hours, Accidents and Injuries Among Seafarers. A Systematic Review. (external link)

Popular science article

• Bjørn Bjorvatn; Siri Waage; Ingebjørg Louise Rockwell Djupedal et al. (2023). Hva sier vitenskapen om sykepleieres helse? Her er en oppsummering. (external link)
• Anders Johansson; Bjørn Bjorvatn; Erik Saxegaard et al. (2018). Stor interesse for odontologisk søvnmedisin og søvnapné i Norge. (external link)
• Bjørn Bjorvatn; Elisabeth Flo; Eldbjørg Fiske et al. (2013). Ulik forekomst av søvnlidelser mellom fylker og mellom by og land. (external link)
• Bjørn Bjorvatn (2010). Parasomnier - rare ting som skjer i søvne. (external link)
• Siri Waage; Eirunn Thun; Iselin Reknes et al. (2015). For få timer mellom vaktene påvirker søvn og helse. (external link)
• Ståle Pallesen; Bente Elisabeth Moen; Bjørn Bjorvatn (2010). Søvnmiljøet i Bergen satser på skiftarbeidforskning. (external link)
• Bjørn Bjorvatn; Eldbjørg Fiske; Janne Grønli (2012). Interaktiv spørreundersøkelse om søvn på nett. (external link)
• Bjørn Bjorvatn; Janne Grønli (2007). Nasjonalt Kompetansesenter for Søvnsykdommer. (external link)
• Bjørn Bjorvatn (1997). Bruk av videokanon i undervisningen. En evaluering. Universitetspedagogisk utviklingsarbeid i Bergen. (external link)

Report

• Louise Bjerrum; Endre Visted; Inger Hilde Nordhus et al. (2024). Acute Effects of Polychromatic and Monochromatic Light Modalities on Measures of Sustained Attention. (external link)

Conference lecture

• Filip Borgen Andersen; Ståle Pallesen; Elise Victoria Tørdal et al. (2025). A systematic review and meta-analysis on the associations between short rest periods (quick returns) between shifts, health, function, and behavior outcomes. (external link)
• Bjarte Birkeland Kysnes; Anette Harris; Siri Waage et al. (2025). How shift work influences sleep, health, safety, and turnover intention among hospital employees – an observational cohort study protocol. (external link)
• Bjørn Bjorvatn (1999). Non-pharmacological treatment of chronic insomnias. (external link)
• Alvhild Alette Bjørkum; CM Portas; Bjørn Bjorvatn et al. (2000). Micodialysis perfusion of 5-HT1A receptor ago- and antagonists in dorsal raphe nucleus - changes in 5-HT levels and behaviorial state. (external link)
• Eli Sørensen; Bjørn Bjorvatn; Alvhild Alette Bjørkum et al. (2000). Sleep and waking following perfusion of a selective 5-HT1A antagonist in the dorsal raphe nucleus in rats. (external link)
• Bjørn Bjorvatn; G Kecklund; T Åkerstedt (1998). Bright light facilitates adaption to night work in the North Sea and readaption to day life. (external link)
• Eli Sørensen; Bjørn Bjorvatn; Reidun Ursin (1998). A dose-response study of the selective 5-HT1A antagonist p-MPPI on sleep-wake stages in the rat. (external link)
• Alvhild Alette Bjørkum; CM Portas; Bjørn Bjorvatn et al. (2000). Dialysis perfusion of a 5-HT1A receptor antagonist in dorsal raphe nucleus increases 5-HT levels in sleep and waking. (external link)
• CA Fornal; FJ Martin; A Mendlin et al. (1998). Pindolol increases extracellular serotonin levels in freely moving cats at doses which supress serotonergic neuronal activity. (external link)
• Eli Sørensen; Bjørn Bjorvatn; Reidun Ursin (1998). P-MPPI antagonizes sleep as well as behavioral effects of 8-OH-DPAT in the freely moving rat. (external link)
• CA Fornal; FJ Martin; CW Metzler et al. (1998). Pindolol augmentation of the antidepressant response to SSRIs may not involve antagonism of somatodendritic 5-HT1A autoreceptors. (external link)
• CA Fornal; FJ Martin; A Mendlin et al. (1998). Pindolol increases extracellular serotonin levels in awake cats at doses which suppress serotonergic neuronal activity. (external link)
• Bjørn Bjorvatn; CA Fornal; FJ Martin et al. (1999). The effect of the 5-HT1A antagonist p-MPPI on dorsal raphe unit activity is dependent on the behavioral state of the animal. (external link)
• Eli Sørensen; Janne Grønli; Bjørn Bjorvatn et al. (1999). The effect of a selective 5-HT1A antagonist on waking levels of serotonin in hippocampus in rats. (external link)
• Alvhild Alette Bjørkum; CM Portas; Bjørn Bjorvatn et al. (1998). Perfusion by microdialysis of a 5-HT1A receptor antagonist in dorsal raphe nucleus increases 5-HT levels in sleep and waking. (external link)
• Alvhild Alette Bjørkum; CM Portas; Bjørn Bjorvatn et al. (2000). Microdialysis perfusion of a 5-HT1A receptor antagonist in dorsal raphe nucleus change 5-HT levels in sleep and waking. (external link)
• A Fetveit; Bjørn Bjorvatn (2001). Sleep and sleep problems in a nursing home. (external link)
• Bjørn Bjorvatn; G Kecklund; T Åkerstedt (2001). Bright light facilitates circadian adaptation among night workers at an oil platform in the North Sea. (external link)
• Jelena Mrdalj; Ståle Pallesen; Anne Marita Milde et al. (2011). Lower brain activity during sleep and wakefullnes; induced by exposure to long maternal separation and chronic mild stress in rats. (external link)
• Jelena Mrdalj; Robert Murison; Anne Marita Milde et al. (2010). Early Life Stress and the effect on circadian rhythmicity. The mother - infant relationship in rats as model. (external link)
• Jelena Mrdalj; Ståle Pallesen; Anne Marita Milde et al. (2011). Chronic mild stress potentiates a lower brain activity during sleep and wakefulness in rats exposed to long maternal separation. (external link)
• Ingeborg Forthun; Knut Eirik Ringheim Eliassen; Knut Erik Emberland et al. (2022). The association between insomnia, sleep duration and infections among patients in general practice. (external link)
• Ingeborg Forthun; Siri Waage; Ståle Pallesen et al. (2022). A longitudinal study of work time schedule and prescribed sleep medication use in Norwegian nurses. (external link)
• Arvid Skjerve; F Holsten; Dag Aarsland et al. (2000). Bright light treatment for sleep and behavioural disturbances in severe demetia. (external link)
• Signe Karen Dørheim; Susan Garthus-Niegel; Bjørn Bjorvatn et al. (2014). May personality traits predict insomnia or sleep pattern in late pregnancy and after delivery?. (external link)
• Alvhild Alette Bjørkum; Chiara Maria Portas; Bjørn Bjorvatn et al. (2000). Microdialysis perfusion of 5-HT-1a receptor ago- and anagonists in dorsal raphe nucleus - changes in 5-HT levels and behavioral state. (external link)
• Erlend Sunde; Jelena Mrdalj; Torhild Pedersen et al. (2019). Effects of Different Light Intensities on Adaptation to Simulated Night Shifts: A Randomized Counterbalanced Crossover Study. (external link)
• Sabine Ruths; Bjørn Bjorvatn; Stefan Hjørleifsson et al. (2017). Self-reported depression in patients visiting their general practitioner. (external link)
• Bjørn Bjorvatn; G Kecklund; T Åkerstedt (2000). Bright light treatment at an oil platform in the North Sea. (external link)
• Bjørn Bjorvatn (2000). The use of actigraphy in periodic leg movements. A case history. (external link)
• Sabine Ruths; Jørund Straand; Harald Armand Nygaard et al. (2003). Seponering av antipsykotiske legemidler hos demente sykehjemspasienter - en kontrollert dobbelt blind studie. (external link)
• Fred Holsten; Bjørn Bjorvatn (1997). Phototherapy of Seasonal Affective Disorder in the west of Norway. (external link)
• Hege Andersen Amofah; Anders Broström; Bengt Gotthard Anton Fridlund et al. (2015). Daytime sleep in octogenarian patients after aortic valve therapy.. (external link)
• Erlend Joramo Brevik; Astri Lundervold; Anne Halmøy et al. (2016). Insomnia in adults with ADHD: impact of clinical subtype and pharmacological treatment. (external link)
• Kjersti Marie Blytt; Bjørn Bjorvatn; Bettina Husebo et al. (2017). Effects of pain treatment on sleep in People With dementia and depression: a placebo-controlled randomised clinical trial.. (external link)
• Ingeborg Forthun; Siri Waage; Ståle Pallesen et al. (2020). Predictors of sleep medication use among Norwegian nurses - a cross-sectional study. (external link)
• Elisabeth Flo; Ståle Pallesen; Bente Elisabeth Moen et al. (2013). Shift-rotations with less than 11 hours rest periods predict shift work disorder, excessive sleepiness and pathological fatigue in nurses at one year follow-up. (external link)
• Bjørn Bjorvatn; Kjell Jørgen Hole; Reidun Ursin (1996). Sleep and waking after 8-OH-DPAT given systemically as well as perfused into the dorsal raphe nucleus in rats. (external link)
• Bjørn Bjorvatn; S Fagerland; T Eid et al. (1996). Sleep/waking effects of 8-OH-DPAT given systemically as well as perfused into the dorsal raphe nucleus in rats. (external link)
• Sabine Ruths; Jørund Straand; Harald Armand Nygaard et al. (2003). Antipsychotic drug withdrawal from demented nursing home residents - a randomised double-blind controlled trial. The Bergen District Nursing Home (BEDNURS)Study. (external link)
• Eldbjørg Fiske; Janne Grønli; Bjørn Bjorvatn et al. (2007). The effect of GABAA antagonist bicucilline on dorsal raphe nucleus and frontal cortex extracellular serotonin: a window on SWS and REM sleep modulation. (external link)
• Janne Grønli; Eldbjørg Fiske; Robert Murison et al. (2007). Serotonin and GABA in the hippocampus after chronic mild stress in rats. A microdialysis study over the sleep/wake cycle in an animal model of depression. (external link)
• Bjørn Bjorvatn; Fred Holsten (2000). Praktisk bruk av lysbehandling og ikke-medikamentelle metoder. (external link)
• SD Ho-Yen; Malin Eberhard-Gran; GT Bondevik et al. (2007). Depressive symptoms in the postnatal period in Lalitpur district, Nepal: prevalence and risk factors. (external link)
• SD Ho-Yen; Malin Eberhard-Gran; GT Bondevik et al. (2007). Are there any differences in sleep between depressed and non-depressed mothers in the postnatal period?. (external link)
• Elisabeth Flo; Ståle Pallesen; Bente Elisabeth Moen et al. (2013). Short rest periods of less than 11 hours between work shifts predict sleep and health problems in nurses at one year follow-up. (external link)
• SK Dørheim; Malin Eberhard-Gran; GT Bondevik et al. (2008). Sleep and depression among postnatal women, a population-based study supplemented by sleep diary and actigraphy. (external link)
• SK Dørheim; Malin Eberhard-Gran; GT Bondevik et al. (2008). Risk factors for poor sleep and depression among postnatal women, a population based questionnaire study supplemented by sleep diary and actigraphy. (external link)
• SD Ho-Yen; Malin Eberhard-Gran; GT Bondevik et al. (2006). Depressive symptoms in the postnatal period in Lalitpur district, Nepal: Prevalence and risk factors. (external link)
• Sabine Ruths; Jørund Straand; Harald Armand Nygaard et al. (2004). Impact of antipsychotic withdrawal on behavour and sleep/wake activity in demented nursing home residents. A randomised, placebo-controlled, double-blinded study. (Oral presentation by S Ruths; , Book of abstracts no 521, pp 212). (external link)
• CM Portas; Bjørn Bjorvatn; S Fagerland et al. (1997). On-line detection of serotonin in DRN over the sleep/wake cycle: A microdialysis study in the freely moving rat. (external link)
• Erlend Sunde; Jelena Mrdalj; Torhild Thue Pedersen et al. (2022). Reversal learning and working memory scanning task performance improve with bright light exposure during simulated night work: a counterbalanced crossover study. (external link)
• Signe Karen Dørheim; Bjørn Bjorvatn; Malin Eberhard-Gran (2012). Insomnia and depressionin late pregnancy- a population based study. (external link)
• Signe Karen Dørheim; Bjørn Bjorvatn; Malin Eberhard-Gran (2013). May insomnia in late pregnancy predict postpartum depressive symptoms? A population based longitudinal study. (external link)
• Jelena Mrdalj; Ståle Pallesen; Anne Marita Milde et al. (2011). Early and later life stress leads to a lower brain activity during sleep and wakefulness in rats. (external link)
• Bjørn Bjorvatn; A Fetveit (2003). Sleep disturbances among nursing home residents. (external link)
• Signe Karen Dørheim; Bjørn Bjorvatn; Malin Eberhard-Gran (2013). Rates and risk factors for sick leave during pregnancy- a longitudinal study. (external link)
• Signe Karen Dørheim; Gunnar Tschudi Bondevik; Malin Eberhard-Gran et al. (2010). Sleep and depression among postnatal women- a population based questionnaire study supplemented by sleep diary and actigraphy. (external link)
• Iselin Reknes; Ståle Einarsen; Nils Magerøy et al. (2014). The moderating role of individual coping style on the bullying-health relationship. (external link)
• Stine Hjelle Skelton; Inger Hilde Nordhus; Ståle Pallesen et al. (2002). Early morning awakening (EMA) in the elderly: A bright light therapy study. (external link)
• Jelena Mrdalj; Robert Murison; Finn Konow Jellestad et al. (2013). Hypothermia after chronic mild stress exposure in rats with ahistory of postnatal maternal separation. (external link)
• Iselin Reknes; Ståle Einarsen; Ståle Pallesen et al. (2016). Exposure to bullying behaviors at work and subsequent symptoms of anxiety: The moderating role of individual coping style. (external link)
• Nils Magerøy; Guy Notelaers; Bjørn Bjorvatn et al. (2010). Aggression from clients was not perceived as bullying among Norwegian nurses. (external link)

Conference abstract

• Louise Bjerrum; Lin Sørensen; Berge Osnes et al. (2024). The acute effects of artificial light on aspects of sustained attention. (external link)
• Ane Wilhelmsen-Langeland; Ingrid Dundas; Ingvild W. Saxvig et al. (2012). Dilemmas associated with having delayed sleep phase disorder. (external link)
• Børge Sivertsen; Siri Omvik; Ståle Pallesen et al. (2008). CBT versus pharmacological treatment of insomnia in older adults. (external link)
• Signe K Dørheim; GT Bondevik; Malin Eberhard-Gran et al. (2008). Subjective and objective sleep among depressed and non-depressed postnatal mothers- a population based questionnaire study supplemented by sleep diary and actigraphy. (external link)
• Bjørn Bjorvatn; AM van den Hoven; Anne Marie Kaldestad van den Hoven et al. (2006). The subjective symptomatology in patients with different sleep disorders. (external link)
• Anette Harris; Siri Waage; Holger Ursin et al. (2010). SHIFT WORK, CORTISOL, REACTION TIME TEST AND HEALTH AMONG OFFSHORE WORKERS. (external link)
• Ingebjørg Louise Rockwell Djupedal; Anette Harris; Erling Svensen et al. (2024). Effects of a work schedule with reduced quick returns on insomnia, sleepiness and work-related fatigue among healthcare workers: a large-scale cluster randomized controlled trial. (external link)
• Siri Waage; Ståle Pallesen; Bente Elisabeth Moen et al. (2012). A comparison of sleep and health at the start and end of a 14-day work period among Norwegian oil rig workers. (external link)
• Bjørn Bjorvatn; Jelena Mrdalj; Ingvild W. Saxvig et al. (2016). Use of electronic media in bed and reading in bed after bedtime – Age and sex differences in a representative adult population.. (external link)
• Geir Scott Brunborg; Rune Mentzoni; Helge Molde et al. (2010). Associations between media use in the bedroom, sleep habits and symptoms of insomnia. (external link)
• Børge Sivertsen; S Overland; Simon Øverland et al. (2006). Insomnia as risk-factor for permanent work disability. (external link)
• Bjørn Bjorvatn (2007). Søvn og søvnsykdommer. Gå i søvne. (external link)
• Børge Sivertsen; Simon Øverland; Dag Olav Grini Neckelmann et al. (2007). The effect of insomnia and sleep duration on work disability. (external link)
• Janne Grønli; Eldbjørg Fiske; Robert Murison et al. (2007). Extracellular levels of serotonin and GABA in the hippocampus after chronic mild stress in rats. A microdialysis study over the sleep/wake cycle in an animal model of depression. (external link)
• Nicolas Melchior Frederic Øyane; Fred Holsten; Reidun Ursin et al. (2005). Sleep complaints more common among subjects with high seasonality. (external link)
• Nicolas Øyane; Reidun Ursin; Ståle Pallesen et al. (2007). High degree of seasonality is associated with more sleep problems and shorter sleep duration. (external link)
• Siri Omvik; Børge Sivertsen; Ståle Pallesen et al. (2007). Effects of cognitive behavioural treatment (CBT) and zopiclone on measures of quality of life in insomniacs. (external link)
• Bjørn Bjorvatn; Inger Hilde Nordhus; Ståle Pallesen (2004). Sleepiness and it's correlates in a Norwegian population. (external link)
• Ingvild Saxvig; Ståle Pallesen; Eli Sørensen et al. (2007). Sleep habits and correlates in a randomized sample of Norwegian high school students. (external link)
• Siri Waage; Ståle Pallesen; Bjørn Bjorvatn (2007). Shift Work Sleep Disorder among oil rig workers in the North Sea. (external link)
• Janne Grønli; Robert Murison; Tambudzai Kanhema et al. (2005). Chronic mild stress, an animal model of depression, affects the expression of BDNF and 5-HT levels over the sleep/wake cycle in hippocampus in rats. (external link)
• Bjørn Bjorvatn; Lena Leissner; Jan Ulfberg et al. (2005). Prevalence, severity and predictors of restless legs syndrome in Norway and Denmark. (external link)
• Nicolas Melchior Frederic Øyane; Fred Holsten; Reidun Ursin et al. (2004). Seasonal variations in mood and behaviour associated with female gender, low annual income and education. (external link)
• Reidun Ursin; Bjørn Bjorvatn; Fred Holsten (2004). Sleep characteristics of 40-45 year old short, medium and long sleepers in a Norwegian county. (external link)
• Børge Sivertsen; Siri Omvik; Ståle Pallesen et al. (2008). Treatment of chronic insomnia with cognitive behavioral therapy vs zopiclone. (external link)
• Elisabeth Flo; Ståle Pallesen; Nils Magerøy et al. (2012). Work-related sleep problems vary according to work schedule. (external link)
• Nicolas Øyane; Reidun Ursin; Ståle Pallesen et al. (2008). Increased health risk in subjects with high self-reported seasonality. (external link)
• Bjørn Bjorvatn (2008). Burden of disease in insomnia patients. (external link)
• Ståle Pallesen; Ane Bergland Wilhelmsen; Ingvild W. Saxvig et al. (2008). Prevalence, predictors and consequences of behaviorally induced insufficient sleep syndrome in adolescence. (external link)
• Bjørn Bjorvatn; Janne Grønli; Ståle Pallesen (2008). Prevalence of possible parasomnias in the general population. (external link)
• Arne Fetveit; Bjørn Bjorvatn (2006). Prolonged periods of sleep in nursing home patients are related to the severity of dementia. (external link)
• Knut Fuglesteg Forberg; Bjørn Bjorvatn; Siri Waage (2006). Subjective and objective sleep during an extended shift work schedule. (external link)
• Ina Marie Lunde Sagen; N Oyane; Nicolas Melchior Frederic Øyane et al. (2006). Effects of sleep length and body mass index on metabolic measures. (external link)
• Bjørn Bjorvatn; A Van den Hoven; Anne Marie Kaldestad van den Hoven et al. (2006). Subjective symptomatology in patients with different sleep disorders. (external link)
• Reidun Ursin; Bjørn Bjorvatn; Holger Ursin (2006). Muscle pain and sleep. A population study. (external link)
• Nicolas Melchior Frederic Øyane; Fred Holsten; Reidun Ursin et al. (2006). Seasonality, anxiety and depression. (external link)
• Bjørn Bjorvatn; Kristine Marie Stangenes; Nicolas Melchior Frederic Øyane et al. (2006). Effects of bright light and melatonin on adaptation to night work. A randomized placebo-controlled field study at an oil rig in the North Sea. (external link)
• Knut Fuglesteg Forberg; Bjørn Bjorvatn (2006). The effects of workers age on self-reported adaptation to shift work and other sleep problems at an oil rig in the North Sea. (external link)
• Siri Waage; Sandra Marian Dale; Ruth Skoe Erikstein et al. (2006). Do age and shift work experience matter for sleep and health among nurses in a hospital setting?. (external link)
• Børge Sivertsen; Siri Omvik; Ståle Pallesen et al. (2006). Cognitive-behavioural therapy is more effective than hypnotic treatment. a randomized controlled trial of elderly chronic primary insomniacs. (external link)
• Børge Sivertsen; Siri Omvik; Odd E. Havik et al. (2006). Cognitive-behavioral and hypnotic treatment of chronic primary insomnia among the elderly. A randomized controlled trial. (external link)
• Eli Sørensen; Bjørn Bjorvatn; Reidun Ursin (2006). The nocturnal interplay between postpartum mothers and infants. (external link)

Media feature article

• Bjørn Bjorvatn (1999). Intervjuet om søvn. (external link)
• Johan Gustav Bellika; Bjørn Bjorvatn; Peder Andreas Halvorsen et al. (2024). Personvernet som fundament for fremtidens digitale helsevesen. (external link)
• Bjørn Bjorvatn (1998). Intervju i VG om døgnrytmer. (external link)
• Bjørn Bjorvatn (1998). Intervju i Aftenposten om lysbehandling. (external link)
• Bjørn Bjorvatn (1998). Intervju i Allers om søvnløshet. (external link)
• Bjørn Bjorvatn (1998). Intervju i Oppland Arbeiderblad om Bergen Søvnsenter. (external link)
• Bjørn Bjorvatn (1998). Intervju i Aftenposten om jordstråleskjerming. (external link)
• Bjørn Bjorvatn (1998). Intervju i VG om snuing av døgnet under OL. (external link)
• Bjørn Bjorvatn (1998). Intervju i Agderposten om snuing av døgnet under OL. (external link)
• Bjørn Bjorvatn (1998). Intervju i BT om vinterdepresjon og lysbehandling. (external link)
• Bjørn Bjorvatn (1998). Intervju i Aftenposten om jet lag. (external link)
• Bjørn Bjorvatn (1998). Intervju i Dagsavisen om søvn. (external link)
• bjØrn-erik Kristiansen; Petter Brandtzæg; Bjarne Bjorvatn et al. (2009). Meningokokkvaksineforsøket 1988-91. (external link)
• Bjørn Bjorvatn; Espen Saxhaug Kristoffersen; Peder Andreas Halvorsen et al. (2019). Ny infrastruktur for allmennmedisinsk forskning. (external link)
• Bjørn Bjorvatn; Jørund Straand; Peder Andreas Halvorsen et al. (2018). PraksisNett - et nettverk av fastlegepraksiser. En storsatsing på forskning i allmennpraksis.. (external link)
• Stein Nilsen; Bjørn Bjorvatn; Espen Saxhaug Kristoffersen (2021). PraksisNett- status etter tre år. (external link)
• CM Portas; Bjørn Bjorvatn; Reidun Ursin (2000). Serotonin and the sleep/wake cycle: Special emphasis on microdialysis studies. (external link)
• Bjørn Bjorvatn (1999). Intervjuet om barns døgnrytmeproblemer. (external link)
• Bjørn Bjorvatn (1999). Intervjuet om "å sove på jobben". (external link)
• Bjørn Bjorvatn (1999). Intervjuet om søvn. (external link)
• Bjørn Bjorvatn (1998). Kronikk om søvn - til glede eller plage. (external link)
• Bjørn Bjorvatn (1999). Intervjuet om søvnproblemer hos ungdom. (external link)
• Bjørn Bjorvatn (1999). Intervjuet av NTB om søvn, sendt til en rekke aviser. (external link)

Academic literature review

• Louise Bjerrum; Inger Hilde Nordhus; Lin Sørensen et al. (2024). Acute effects of light during daytime on central aspects of attention and affect: A systematic review. (external link)
• Bjørn Bjorvatn; Susanna Jernelöv; Ståle Pallesen (2021). Insomnia – a heterogenic disorder often comorbid with psychological and somatic disorders and diseases: A narrative review with focus on diagnostic and treatment challenges. (external link)
• Bjørn Bjorvatn; Ståle Pallesen (2009). A practical approach to circadian rhythm sleep disorders. (external link)
• Charles M. Morin; Bei Bei; Bjørn Bjorvatn et al. (2023). World sleep society international sleep medicine guidelines position statement endorsement of “behavioral and psychological treatments for chronic insomnia disorder in adults: An American Academy of sleep medicine clinical practice guidelines”. (external link)
• Arne Fetveit; Bjørn Bjorvatn (2009). Søvnforstyrrelser hos eldre. (external link)
• Sahrai Saeed; Synnøve Andrea Romarheim; Eivind Solheim et al. (2022). Cardiovascular remodeling in obstructive sleep apnea: focus on arterial stiffness, left ventricular geometry and atrial fibrillation. (external link)
• Hanne Marie Lunde; Bjørn Bjorvatn; Kjell-Morten Myhr et al. (2013). Clinical assessment and management of sleep disorders in multiple sclerosis: a literature review. (external link)
• Ingvild Saksvik Lehouillier; Bjørn Bjorvatn; Hilde Hetland et al. (2011). Individual differences in tolerance to shift work--a systematic review. (external link)
• Ingvild Berg Saksvik; Bjørn Bjorvatn; Hilde Hetland et al. (2010). Individual differences in tolerance to shift work - a systematic review. (external link)
• Jade M. Murray; Julia E. Stone; Sabra M. Abbott et al. (2024). A Protocol to Determine Circadian Phase by At-Home Salivary Dim Light Melatonin Onset Assessment. (external link)
• Nicolas Øyane; Anne Marie Kaldestad van den Hoven; Arne Fetveit et al. (2009). Symptommønstre ved kroniske søvnsykdommer. (external link)
• Erlend Sunde; Anette Kristoffersen Harris; Morten Birkeland Nielsen et al. (2020). Protocol for a systematic review and meta-analysis on the associations between shift work and sickness absence. (external link)
• Bjørn Bjorvatn; Janne Grønli; Ståle Pallesen (2009). Parasomnier. (external link)
• Ståle Pallesen; Bjørn Bjorvatn (2009). Døgnrytmeforstyrrelser. (external link)
• Ståle Pallesen; Bjørn Bjorvatn; Nils Magerøy et al. (2009). Measures to couteract the negative effects of night work. (external link)
• Hogne Vikanes Buchvold; Ståle Pallesen; Siri Waage et al. (2019). Shift Work and Lifestyle factors: A 6-year follow-Up Study Among Nurses. (external link)
• Ståle Pallesen; Bjørn Bjorvatn; Nils Magerøy et al. (2010). Measures to counteract the negative effects of night work. (external link)
• Ståle Pallesen; Bjørn Bjorvatn; Janne Grønli (2016). Behandling av mareritt : en oversikt over randomiserte behandlingsstudier. (external link)
• Dieter Riemann; Colin A. Espie; Ellemarije Altena et al. (2023). The European Insomnia Guideline: An update on the diagnosis and treatment of insomnia 2023. (external link)
• Øystein Vedaa; Anette Harris; Bjørn Bjorvatn et al. (2016). Systematic review of the relationship between quick returns in rotating shift work and health-related outcomes. (external link)
• Bjørn Bjorvatn (2016). Medikamentell behandling av insomni blant voksne :. (external link)
• Ingrid Nesdal Fossum; Bjørn Bjorvatn; Siri Waage et al. (2013). Effects of shift and night work in the offshore petroleum industry: a systematic review. (external link)
• Eirunn Thun; Bjørn Bjorvatn; Elisabeth Flo et al. (2015). Sleep, circadian rhythms, and athletic performance. (external link)
• Michaeil Gradisar; Marcel G Smits; Bjørn Bjorvatn (2014). Assessment and treatment of delayed sleep phase disorder in adolescents: Recent innovations and cautions.. (external link)
• Bjørn Bjorvatn; Ilona Merikanto; Frances Chung et al. (2025). Sleep During Pandemic Times: Summary of Findings and Future Outlook Through the Lens of the International COVID Sleep Study (ICOSS). (external link)
• Christian Benedict; Markku Partinen; Bjørn Bjorvatn et al. (2021). Sleep in Female Healthcare Workers during COVID-19: A Cross-Sectional Survey Study in Sweden during the Flattening of the First Wave of the Pandemic. (external link)
• Chiara Baglioni; Ellemarije Altena; Bjørn Bjorvatn et al. (2020). The European Academy for cognitive-behavioural therapy for insomnia: An initiative of the European Insomnia Network to promote implementation and dissemination of treatment.. (external link)
• Eirunn Thun; Bjørn Bjorvatn; Torbjørn Åkerstedt et al. (2016). Trajectories of sleepiness and insomnia symptoms in Norwegian nurses with and without night work and rotational work. (external link)
• Ingvild Berg Saksvik; Bjørn Bjorvatn; Hilde Hetland et al. (2011). Individual differences in tolerance to shift work - A systematic review. (external link)
• Bjørn Bjorvatn (2016). Søvn og søvnforstyrrelser. (external link)
• Elisabeth Flo; Bjørn Bjorvatn; Anne Corbett et al. (2016). Joint occurrence of pain and sleep disturbances in people with dementia. A systematic review. (external link)
• Mathilda Skeie-Larsen; Rebekka Stave; Janne Grønli et al. (2023). The Effects of Pharmacological Treatment of Nightmares: A Systematic Literature Review and Meta-Analysis of Placebo-Controlled, Randomized Clinical Trials. (external link)
• Iris Mulders Steine; Allison G. Harvey; John H Krystal et al. (2012). Sleep disturbances in sexual abuse victims: A systematic review. (external link)
• Alv A Dahl; Bjørn Bjorvatn (2009). Bidirectional association between insomnia and anxiety. (external link)
• Ståle Pallesen; Helge Molde; Bjørn Bjorvatn et al. (2015). Behandling av dataspillavhengighet : en systematisk oversikt. (external link)
• Bjørn Bjorvatn; Børge Sivertsen; Nicolas Øyane et al. (2009). Insomni. (external link)

Lecture

• Bjørn Bjorvatn (1997). Non-pharmacological treatment of chronic insomnia. (external link)
• V Mundal; Bjørn Bjorvatn; CM Portas et al. (1997). Sleep/waking effects of methiothepin, a non-selective 5-HT antagonist, perfused in dorsal raphe nucleus in rats. Microdialysis combined with polygr recording. (external link)
• Reidun Ursin; Bjørn Bjorvatn (1997). The delta sleep increase following the 5-HT reuptake inhibitor zimeldine in rats is not blocked by an adenosine A1 antagonist. (external link)
• Bjørn Bjorvatn; S Fagerland; T Eid et al. (1997). Vigilance effects of the selective 5-HT 1A agonist 8-OH-DPAT given systemically and locally in the dorsal raphe nucleus in rats. (external link)
• Fred Holsten; Bjørn Bjorvatn (1997). Phototherapy of seasonal affective disorder in the west of Norway. (external link)
• Bjørn Bjorvatn; G Kecklund; T Åkerstedt (1997). Adaptation to night work in the North Sea and readaptation following return home. (external link)
• Fred Holsten; Bjørn Bjorvatn; HA Øvsteng et al. (1997). Phototherapy in non-seasonal depressions. (external link)
• IM Johansen; Fred Holsten; Bjørn Bjorvatn (1997). Morning bright light for "sundowning" in Mb. Alzheimer. (external link)
• Bjørn Bjorvatn; G Kecklund; T Åkerstedt (1997). Bright light treatment may facilitate adaptation to night work at oil rigs in the North Sea. (external link)
• Bjørn Bjorvatn; G Kecklund; T Åkerstedt (1997). Bright light treatment during night work at oil rigs. (external link)
• CM Portas; Bjørn Bjorvatn; S Fagerland et al. (1997). Extracellular 5-HT levels in dorsal raphe over the sleep/wake cycle: a microdialysis study in the freely moving rat. (external link)
• Eli Sørensen; Bjørn Bjorvatn; S Fagerland et al. (1997). A dose-response study of the selective 5-HT 1A antagonist p-MPPI on sleep/wake stages in the rat. (external link)
• Alvhild Alette Bjørkum; Bjørn Bjorvatn; Dag Neckelmann et al. (1997). Modulatory role of the descending serotonergic system in sleep and waking. (external link)
• Bjørn Bjorvatn (1999). Do non-pharmacological interventions help chronic insomniacs?. (external link)
• Bjørn Bjorvatn; Sverre Lehmann; Anders Johansson (2014). Søvnforstyrrelser. (external link)
• Egil Andreas Fors; Guri Rørtveit; Johan Gustav Bellika et al. (2022). Practice-based research networks: A small step for a GP, but a giant leap for primary care research. (external link)
• Bente Elisabeth Moen; Siri Waage; Knut Fuglesteg Forberg et al. (2009). Tunnels workers may adapt well to night shift work. (external link)
• Hege Andersen Amofah; Anders Broström; Bengt Gotthard Anton Fridlund et al. (2014). Søvn hos pasienter på 80+ etter AVR eller TAVI. (external link)
• Reidun Ursin; Janne Grønli; Eli Sørensen et al. (2000). A single dose of the adenosine A1 antagonist 8-cyclopentyl-theofylline (CPT) increases hippocampal serotonin during waking in rats as measured by microdialysis. (external link)
• Bjørn Bjorvatn (2000). The use of actigraphy in periodic leg movements. A case history. (external link)
• Bjørn Bjorvatn; G Kecklund; T Åkerstedt (2000). Bright light treatment at an oil platform in the North Sea. (external link)
• Elisabeth Flo-Groeneboom; Kjersti Marie Blytt; Bjørn Bjorvatn et al. (2023). Forskernatt «Søvnens makt: Ungdom – overgang – alderdom». (external link)

Radio or TV participation

• Bjørn Bjorvatn (1998). Intervju i P4 om hvorfor vi sover forskjellig antall timer. (external link)
• Bjørn Bjorvatn (1998). Intervju i Radio 1 Nord om døgnrytmer. (external link)
• Bjørn Bjorvatn (1999). Om søvn. (external link)
• Ingjald Pilskog; Bjørn Bjorvatn (2023). Søvn og søvnvansker: Historiens siste sommertid?. (external link)

Doctoral thesis (PhD)

• Bjørn Bjorvatn (1995). Serotonin and the sleep/wake cycle (dr.med.). (external link)
• Kjersti Marie Blytt; Elisabeth Flo; Bettina Husebø et al. (2019). Sleep in Nursing Home Patients: Clinical Assessment and the Effects of Pain Treatment on Sleep. (external link)
• Bjørn Bjorvatn; Gunnar Tschudi Bondevik; Malin Eberhard-Gran et al. (2009). Depression and sleep in the postnatal period : a study in Nepal and Norway. (external link)

Working paper

• Bjørn Bjorvatn (2007). Behandling av døgnrytmeproblemer hos unge mennesker. (external link)
• Bjørn Bjorvatn (2007). Søvnproblemer - hvordan skal de behandles?. (external link)
• Bjørn Bjorvatn (2007). Restless legs. (external link)
• Bjørn Bjorvatn (2007). Søvn og søvnproblemer. (external link)

Editorial/Leader article

• Susanna Jernelöv; Ståle Pallesen; Bjørn Bjorvatn (2021). Editorial: Insomnia: A Heterogenic Disorder Often Comorbid With Other Disorders and Diseases. (external link)
• Bjørn Bjorvatn (2010). Søvnforskning. (external link)
• Bjørn Bjorvatn (2010). Senter for Søvnmedisin. (external link)
• Seithikurippu R. Pandi-Perumal; Velayudhan Mohan Kumar; Namasivayam Ganesh Pandian et al. (2022). Scientists Against War: A Plea to World Leaders for Better Governance. (external link)
• Seithikurippu R. Pandi-Perumal; Willem A.C.M. van de Put; Andreas Maercker et al. (2023). Harbingers of Hope: Scientists and the Pursuit of World Peace. (external link)
• Bjørn Bjorvatn; Siri Waage (2013). Bright Light Improves Sleep and Psychological Health in Shift Working Nurses. (external link)
• Seithikurippu R. Pandi‑Perumal; Kamalesh K. Gulia; Hruda Nanda Mallick et al. (2023). Israel−Palestine Conflict: Risk of Sleep Disorders and Post-Traumatic Stress Disorders. (external link)

Non-fiction book chapter

• Bjørn Bjorvatn; Ståle Pallesen (2019). Søvnsykdommer. (external link)
• Bjørn Bjorvatn (2025). Søvn og søvnforstyrrelser. (external link)
• Steinar Hunskaar; Bjørn Bjorvatn (2022). 9. Lærebøker og fagbøker. (external link)
• Bjørn Bjorvatn; Claude F Gronfier (2014). Circadian rhythm sleep disorders. 1. Nosological classification, definitions, epidemiology. (external link)
• Claude F Gronfier; Bjørn Bjorvatn (2014). Circadian rhythm sleep disorders. 3. Clinical Picture and diagnosis.. (external link)
• Bjørn Bjorvatn; Ståle Pallesen (2014). Søvnsykdommer. (external link)
• Ståle Pallesen; Bjørn Bjorvatn (2016). Søvnlidelser.. (external link)
• Bjørn Bjorvatn; Arne Fetveit (2003). Søvn og søvnforstyrrelser. (external link)
• Bjørn Bjorvatn (2016). Irregular sleep-wake rhythm disorder. (external link)
• Bjørn Bjorvatn (2001). Leggkramper. (external link)
• Bjørn Bjorvatn (1996). Søvnvansker. (external link)
• Bjørn Bjorvatn (2001). Søvnvansker. (external link)
• Bjørn Bjorvatn (2001). Søvnvansker. (external link)
• Bjørn Bjorvatn (2001). Restless legs. (external link)

Academic book chapter

• Bjørn Bjorvatn (2000). Ikke-farmakologisk behandling av søvnvansker. (external link)
• Fred Holsten; Bjørn Bjorvatn (2004). Søvnvansker. (external link)
• Bjørn Bjorvatn (2000). Søvnvansker ved jet lag, nattarbeid og søvnfaseforstyrrelser. (external link)
• K Engedal; F Holsten; L Hundvadt et al. (2001). Psykiske lidelser. (external link)
• K Engedal; F Holsten; L Hundvadt et al. (2001). Legemidler ved psykiske lidelser. (external link)
• Jørund Straand; Bjørn Bjorvatn (2003). Søvn og søvnforstyrrelser. (external link)
• Bjørn Bjorvatn; Arne Fetveit (2003). Søvnforstyrrelser hos eldre. (external link)
• Arne Fetveit; Bjørn Bjorvatn (2005). Søvnforstyrrelser hos ungdom. (external link)
• Bjørn Bjorvatn; Fred Holsten (2012). Søvnforstyrrelser. (external link)
• Fred Holsten; Bjørn Bjorvatn (2012). Søvnforstyrrelser ved bipolare lidelser. (external link)
• Ståle Pallesen; Bjørn Bjorvatn (2021). 5. Health risks.. (external link)
• Bjørn Bjorvatn; Ståle Pallesen (2021). 3. Clinical picture and diagnosis.. (external link)
• Bjørn Bjorvatn (2021). Nosological classification, definitions, and epidemiology.. (external link)
• John Axelsson; Bjørn Bjorvatn (2021). 2.1. Shift work.. (external link)
• T Åkerstedt; G Kecklund; M Gillberg et al. (1998). Subjective sleepiness in shift work. (external link)
• Jørund Straand; Bjørn Bjorvatn (2003). Søvn og søvnforstyrrelser. (external link)

Non-fiction monograph

• Bjørn Bjorvatn (2019). Skiftarbeid og søvn. Slik mestrer du nattarbeid og uregelmessig arbeidstid.. (external link)
• Bjørn Bjorvatn (2007). Bedre søvn. En håndbok for deg som sover dårlig. (external link)
• Bjørn Bjorvatn (2021). Bedre søvn - en håndbok for deg som sover dårlig. (external link)
• Bjørn Bjorvatn (2013). Bedre Søvn. En håndbok til deg som sover dårlig. 2. utgave. (external link)
• Bjørn Bjorvatn (2016). Ungdomssøvn. Utredning og behandling av forstyrret døgnrytme og andre søvnlidelser.. (external link)

Letter to the editor

• Bjørn Bjorvatn (2004). Søvnighet ved dødsfall blant bilførere. (external link)
• Morten Eirik Berge; Anders Johansson; Bjørn Bjorvatn et al. (2014). Oral appliance for sleep apnea. (external link)
• Morten Engstrøm; Sigurd Aarrestad; Guttorm Eldøen et al. (2018). Nye anbefalinger for objektiv undersøkelse av søvn og søvnforstyrrelser.. (external link)

Encyclopedia entry

• Bjørn Bjorvatn (2010). Leggkramper. (external link)
• Bjørn Bjorvatn; Fred Holsten (2010). Søvnvansker. (external link)
• Bjørn Bjorvatn (2001). Søvn ved depressive lidelser. (external link)

Master’s thesis

• Eyvind Kartveit; Chiara Maria Portas; Bjørn Bjorvatn (2005). The Effect of Slow Wave Sleep Deprivation on Memory Acquisition and Consolidation in Humans. (external link)

Journal corrigendum

• Morten Eirik Berge; Anders Johansson; Shashi Gulati et al. (2014). Skinnebehandling mot søvapne. (external link)

Research report

• Olav Skatvedt; Svein Riis; Bjørn Bjorvatn et al. (2002). Utredning og behandling av søvnrelatert respirasjonsbesvær hos voksne og barn. (external link)
• Bjørn Bjorvatn (2000). Søvnproblemer. (external link)
• Bjørn Bjorvatn (2000). Søvnproblemer. (external link)

Book anthology

• Bjørn Bjorvatn; Claude F Gronfier (2014). Circadian rhythm sleep disorders. 1. Nosological classification, definitions, epidemiology.. (external link)

Textbook

• Bjørn Bjorvatn (2012). Søvnsykdommer. Moderne utredning og behandling. (external link)

Media interview

• Catharina Elisabeth Arfwedson Wang; Bjørn Bjorvatn (2019). Vinterdepresjon: Slik gjør du mørketiden lysere. (external link)

See a complete overview of publications in NVA.

See publications listed in CRIStin

Shift work, sleep and health

Chronic insomnia

Circadian rhythm sleep-wake disorders

Obstructive sleep apnea

Parasomnias

Sleep health