• Sleep and health in shift working nurses 

      Flo, Elisabeth (Doctoral thesis, 2013-02-22)
      In this thesis, the prevalence of Shift Work Disorder (SWD) in a sample of nurses, and the association between SWD and work characteristics, health outcome and personality (paper 1) have been investigated. Next, the ...
    • Sleep and naval performance. The impact of personality and leadership 

      Nordmo, Morten (Doctoral thesis, 2019-08-30)
      Adult life consists of work, non-work, and sleep. All individuals experience a relationship between how well and how much they sleep and subsequent functioning the next day, and the amount and quality of sleep is determined ...
    • Sleep and use of electronic devices in adolescence: Results from a large population-based study 

      Hysing, Mari; Pallesen, Ståle; Stormark, Kjell Morten; Jakobsen, Reidar; Lundervold, Astri; Sivertsen, Børge (Peer reviewed; Journal article, 2015-02-02)
      Objectives: Adolescents spend increasingly more time on electronic devices, and sleep deficiency rising in adolescents constitutes a major public health concern. The aim of the present study was to investigate daytime ...
    • Sleep and work functioning in nurses undertaking inpatient shifts in a blue-depleted light environment 

      Kjørstad, Kaia; Faaland, Patrick; Sivertsen, Børge; Kallestad, Håvard; Langsrud, Knut; Vethe, Daniel; Vestergaard, Cecilie Lund; Harris, Anette Kristoffersen; Pallesen, Ståle; Scott, Jan; Vedaa, Øystein (Journal article; Peer reviewed, 2022-07-18)
      Background: Blue-depleted light environments (BDLEs) may result in beneficial health outcomes for hospital inpatients in some cases. However, less is known about the effects on hospital staff working shifts. This study ...
    • Sleep Duration and Nocturnal Awakenings in Infants Born with Gestational Risk 

      Hysing, Mari; Reichborn-Kjennerud, Ted; Markestad, Trond; Elgen, Irene Bircow; Sivertsen, Børge (Peer reviewed; Journal article, 2019)
      Objective: Infants born with gestation-related risks (low birth weight (LBW), small for gestational age (SGA), and prematurely born infants) are faced with a cascade of developmental issues. The aim of this study was to ...
    • Sleep during COVID-19-related school lockdown, a longitudinal study among high school students 

      Saxvig, Ingvild West; Pallesen, Ståle; Sivertsen, Børge; Hysing, Mari; Evanger, Linn Nyjordet; Bjorvatn, Bjørn (Journal article; Peer reviewed, 2021)
      There has been great concern about the impact of coronavirus disease 2019 (COVID-19)-related school lockdown on adolescent health. The aim of the present study was to compare sleep patterns before and during COVID-19-related ...
    • Sleep in the land of the midnight sun and polar night: The Tromsø study 

      Sivertsen, Børge; Friborg, Oddgeir; Pallesen, Ståle; Vedaa, Øystein; Hopstock, Laila Arnesdatter (Journal article; Peer reviewed, 2021)
      While some diseases and human behaviors fluctuate consistently with season, the extent of seasonal variations in sleep, especially at high latitudes, is less consistent. We used data from a geographic region (69º North) ...
    • Sleep patterns and insomnia among adolescents receiving child welfare services: A population-based study 

      Almås, Mia Amalie Jensen; Heradstveit, Ove; Askeland, Kristin Gärtner; Sivertsen, Børge; Nilsen, Sondre Aasen; Hysing, Mari (Journal article; Peer reviewed, 2021)
      Objectives Sleep problems are common in adolescence. We aimed to investigate sleep patterns and insomnia in Norwegian adolescents who have been in contact with child welfare services (CWS), both adolescents living in ...
    • Sleep patterns and insomnia among internationally adopted adolescents 

      Askeland, Kristin Gärtner; Sivertsen, Børge; Hysing, Mari (Journal article; Peer reviewed, 2020)
      Objective Sleep is essential for adolescent development. We aimed to investigate sleep patterns and insomnia among internationally adopted adolescents compared with their nonadopted peers. Design Cross-sectional. ...
    • Sleep problems and depressive symptoms in toddlers and 8-year-old children: A longitudinal study 

      Sivertsen, Børge; Harvey, Allison G.; Reichborn-Kjennerud, Ted; Ystrøm, Eivind; Hysing, Mari (Journal article; Peer reviewed, 2021)
      Sleep and depression are interlinked throughout the lifespan, but very few studies have examined the directionality of the sleep–depression link in children. The aim of the current study was to prospectively examine the ...
    • Sleep, evening light exposure and perceived stress in healthy nulliparous women in the third trimester of pregnancy 

      Liset, Randi; Grønli, Janne; Henriksen, Roger Ekeberg; Henriksen, Tone Elise Gjøtterud; Nilsen, Roy Miodini; Pallesen, Ståle (Journal article; Peer reviewed, 2021)
      Objective Sleep disturbances are common in pregnancy, and the prevalence increases during the third trimester. The aim of the present study was to assess sleep patterns, sleep behavior and prevalence of insomnia in pregnant ...
    • Sleep-wake dynamics and EEG in a rat model of Prolonged Photoperiod 

      Bjerrum, Louise Haugen (Master thesis, 2018-06-07)
      Light exerts a strong influence on our physiology and behavior. It has been suggested that blue-enriched light promotes alertness in both humans and rodents through signaling via intrinsic photosensitive retinal ganglion ...
    • Sleepless due to social media? Investigating problematic sleep due to social media and social media sleep hygiene 

      Tandon, Anushree; Kaur, Puneet; Dhir, Amandeep; Mäntymäki, Matti (Journal article; Peer reviewed, 2020)
      Emergent research suggests that “fear of missing out” (FoMO)-driven nocturnal use of social media may result in sleep disturbances and adversely influence quality of sleep. Previous research in this area primarily focused ...
    • Smartphone Addiction and Subjective Withdrawal Effects: A Three-Day Experimental Study 

      Aarestad, Sarah Helene; Flaa, Tine Almenning; Griffiths, Mark D.; Pallesen, Ståle (Journal article; Peer reviewed, 2023)
      Smartphones have arguably become a common necessity in modern society. While they can be used for many practical purposes, their many features increase the risk of overuse, a key element in behavioral addiction. The present ...
    • Smartphone Restriction and its Effect on Subjective Withdrawal Related Scores 

      Aarestad, Sarah Helene; Eide, Tine Almenning (Master thesis, 2017-06-13)
      Smartphone overuse is associated with a number of negative consequences for the individual and the environment. In the right end of the distribution of smartphone usage, concepts such as smartphone addiction seem warranted. ...
    • Smoking and snus use among Norwegian students: Demographic, personality and substance use characteristics 

      Sæther, Solbjørg Makalani Myrtveit; Askeland, Kristin Gärtner; Pallesen, Ståle; Erevik, Eilin K. (Journal article; Peer reviewed, 2021)
      Background and aim: Smoking rates are decreasing in Norway while the use of snus has increased. We aimed to investigate the co-occurrence of, and the socio-demographics, personality and substance use characteristics ...
    • Social media and social functioning in psychosis: A systematic review 

      Bjørnestad, Jone Ravndal; Hegelstad, Wenche; Berg, Henrik; Davidson, Larry; Joa, Inge; Johannessen, Jan Olav; Melle, Ingrid; Stain, Helen J.; Pallesen, Ståle (Peer reviewed; Journal article, 2019-06-21)
      Background: Individuals with psychosis are heavy consumers of social media. It is unknown to what degree measures of social functioning include measures of online social activity. Objective: To examine the inclusion of ...
    • Social media induced fear of missing out (FoMO) and phubbing: Behavioural, relational and psychological outcomes 

      Tandon, Anushree; Dhir, Amandeep; Talwar, Shalini; Kaur, Puneet; Mäntymäki, Matti (Journal article; Peer reviewed, 2022)
      The penetration of smartphones and the subsequent social media use in modern workplaces have drawn scholars’ attention towards studying their influence on employees. This is a nascent yet critical field of study because ...
    • Social media users’ online subjective well-being and fatigue: A network heterogeneity perspective 

      Kaur, Puneet; Islam, Nazrul; Tandon, Anushree; Dhir, Amandeep (Journal article; Peer reviewed, 2021)
      Scholars have drawn increasing attention to the implications of the dark side of social media for users’ online subjective well-being (OSWB). We develop a research framework based on the limited-capacity model to examine ...
    • Social relationships, stress and infection risk in mother and child 

      Henriksen, Roger Ekeberg (Doctoral thesis, 2016-09-06)
      This thesis draws on theoretical orientations and conceptual models of how social networks, the quality of social relationships and stressful conditions, are linked to physiological responses which can influence health and ...