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Burnell K, Garrett SL, Nelson BW, Prinstein MJ, Telzer EH. Daily links between objective smartphone use and sleep among adolescents. J Adolesc 2024; 96:1171-1181. [PMID: 38698757 DOI: 10.1002/jad.12326] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/06/2023] [Revised: 03/21/2024] [Accepted: 03/28/2024] [Indexed: 05/05/2024]
Abstract
INTRODUCTION Concerns abound on how digital technology such as smartphone use may impair adolescent sleep. Although these linkages are supported in cross-sectional studies, research involving intensive longitudinal assessments and objective measures has called into question the robustness of associations. METHODS In this study, a sample of ethnically diverse U.S. adolescents (N = 71; Mage = 16.49; 56% girls) wore Fitbit devices and submitted screenshots of their smartphone screen time, pickups, and notifications over a 14-day period in 2021. The Fitbits recorded nightly sleep quality and sleep onset. Adolescents also completed daily diaries reporting the previous night's sleep onset time and sleep quality. RESULTS On days when adolescents engaged in greater nighttime screen time and, to some extent, pickups relative to their own average, they also had poorer sleep outcomes that night. Greater screen time was associated with later self-reported and Fitbit-recorded sleep onset and poorer self-reported sleep quality. Greater pickups was associated with later self-reported and Fitbit-recorded sleep onset. Smartphone use during the day did not relate to sleep outcomes, indicating the importance of distinguishing nighttime from daytime use. CONCLUSIONS Parents and clinicians should help adolescents develop healthy digital skills to avoid exacerbating sleep problems that are known to occur during this developmental period.
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Affiliation(s)
- Kaitlyn Burnell
- Department of Psychology and Neuroscience, Chapel Hill, North Carolina, USA
| | - Shedrick L Garrett
- Department of Psychology and Neuroscience, Chapel Hill, North Carolina, USA
| | - Benjamin W Nelson
- Department of Psychology and Neuroscience, Chapel Hill, North Carolina, USA
| | | | - Eva H Telzer
- Department of Psychology and Neuroscience, Chapel Hill, North Carolina, USA
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Bauducco S, Pillion M, Bartel K, Reynolds C, Kahn M, Gradisar M. A bidirectional model of sleep and technology use: A theoretical review of How much, for whom, and which mechanisms. Sleep Med Rev 2024; 76:101933. [PMID: 38657359 DOI: 10.1016/j.smrv.2024.101933] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/30/2023] [Revised: 03/01/2024] [Accepted: 04/05/2024] [Indexed: 04/26/2024]
Abstract
The link between technology and sleep is more complex than originally thought. In this updated theoretical review, we propose a new model informed by the growing body of evidence in the area over the past 10 years. The main theoretical change is the addition of bi-directional links between the use of technology and sleep problems. We begin by reviewing the evidence to date for the originally proposed mechanisms of bright light, arousal, nighttime sleep disruptions, and sleep displacement. Then, in support of the new direction of effect (sleep problems preceding technology use), we propose two new mechanisms: technology before sleep might be used as a time filler and/or as an emotional regulation strategy to facilitate the sleep-onset process. Finally, we present potential moderators of the association between technology and sleep, in recognition of protective and vulnerability factors that may mitigate or exacerbate the effects of technology on sleep and vice versa. The goal of this theoretical review is to update the field, guide future public health messages, and to prompt new research into how much technology and sleep affect each other, for whom it may be problematic, and which mechanisms may explain their association.
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Affiliation(s)
- Serena Bauducco
- Örebro University, School of Behavioural, Social and Legal Sciences, Sweden; Flinders University, College of Education, Psychology and Social Work, Australia.
| | - Meg Pillion
- Flinders University, College of Education, Psychology and Social Work, Australia
| | - Kate Bartel
- WINK Sleep Pty Ltd, Adelaide, Australia; Riverland Academy of Clinical Excellence, Riverland Mallee Coorong Local Health Network, Australia; Flinders University, College of Medicine and Public Health, Australia
| | - Chelsea Reynolds
- Flinders University, College of Education, Psychology and Social Work, Australia; WINK Sleep Pty Ltd, Adelaide, Australia
| | - Michal Kahn
- Tel Aviv University, School of Psychological Sciences, Israel
| | - Michael Gradisar
- WINK Sleep Pty Ltd, Adelaide, Australia; Sleep Cycle AB, Gothenburg, Sweden
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Yu DJ, Wing YK, Li TMH, Chan NY. The Impact of Social Media Use on Sleep and Mental Health in Youth: a Scoping Review. Curr Psychiatry Rep 2024; 26:104-119. [PMID: 38329569 PMCID: PMC10948475 DOI: 10.1007/s11920-024-01481-9] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Accepted: 01/11/2024] [Indexed: 02/09/2024]
Abstract
PURPOSE OF REVIEW Social media use (SMU) and other internet-based technologies are ubiquitous in today's interconnected society, with young people being among the commonest users. Previous literature tends to support that SMU is associated with poor sleep and mental health issues in youth, despite some conflicting findings. In this scoping review, we summarized relevant studies published within the past 3 years, highlighted the impacts of SMU on sleep and mental health in youth, while also examined the possible underlying mechanisms involved. Future direction and intervention on rational use of SMU was discussed. RECENT FINDINGS Both cross-sectional and longitudinal cohort studies demonstrated the negative impacts of SMU on sleep and mental health, with preliminary evidence indicating potential benefits especially during the COVID period at which social restriction was common. However, the limited longitudinal research has hindered the establishment of directionality and causality in the association among SMU, sleep, and mental health. Recent studies have made advances with a more comprehensive understanding of the impact of SMU on sleep and mental health in youth, which is of public health importance and will contribute to improving sleep and mental health outcomes while promoting rational and beneficial SMU. Future research should include the implementation of cohort studies with representative samples to investigate the directionality and causality of the complex relationships among SMU, sleep, and mental health; the use of validated questionnaires and objective measurements; and the design of randomized controlled interventional trials to reduce overall and problematic SMU that will ultimately enhance sleep and mental health outcomes in youth.
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Affiliation(s)
- Danny J Yu
- Li Chiu Kong Family Sleep Assessment Unit, Department of Psychiatry, Faculty of Medicine, The Chinese University of Hong Kong, Shatin, Hong Kong SAR, China
| | - Yun Kwok Wing
- Li Chiu Kong Family Sleep Assessment Unit, Department of Psychiatry, Faculty of Medicine, The Chinese University of Hong Kong, Shatin, Hong Kong SAR, China
| | - Tim M H Li
- Li Chiu Kong Family Sleep Assessment Unit, Department of Psychiatry, Faculty of Medicine, The Chinese University of Hong Kong, Shatin, Hong Kong SAR, China.
| | - Ngan Yin Chan
- Li Chiu Kong Family Sleep Assessment Unit, Department of Psychiatry, Faculty of Medicine, The Chinese University of Hong Kong, Shatin, Hong Kong SAR, China.
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Garrett SL, Burnell K, Armstrong-Carter EL, Nelson BW, Prinstein MJ, Telzer EH. Links Between Objectively-Measured Hourly Smartphone Use and Adolescent Wake Events Across Two Weeks. JOURNAL OF CLINICAL CHILD AND ADOLESCENT PSYCHOLOGY : THE OFFICIAL JOURNAL FOR THE SOCIETY OF CLINICAL CHILD AND ADOLESCENT PSYCHOLOGY, AMERICAN PSYCHOLOGICAL ASSOCIATION, DIVISION 53 2023:1-11. [PMID: 38039087 DOI: 10.1080/15374416.2023.2286595] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 12/03/2023]
Abstract
PURPOSE Psychosocial and bioregulatory pressures threaten sleep during adolescence. Although recent work suggests that the ubiquity of smartphone use throughout adolescence may also relate to poorer sleep outcomes, most existing research relies upon self-report and retrospective measures. This study drew upon objective measures of smartphone use and sleep at the hourly level to understand how smartphone use was associated with the duration of wake events during sleeping hours. METHODS Across a 14-day daily study, 59 racially and ethnically diverse adolescents ages 15 to 18 had their sleep assessed via Fitbit Inspire 2 devices and uploaded screenshots of their screen time, pickups, and notifications as logged by their iPhone's iOS. Multi-level modeling was performed to assess hourly level associations between adolescent smartphone use and wake-events during their sleep sessions (N = 4,287 hourly cases). RESULTS In hours during adolescents' sleep session with more screen time or pickups, adolescents had longer wake event duration. More notifications in a given hour were not associated with wake event duration in the same hour. CONCLUSIONS Using objectively measured smartphone and sleep data collected at the hourly level, we found that during sleeping hours, when adolescents are actively engaging with their smartphones, their sleep is disrupted, such that their wake events are longer in that hour.
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Affiliation(s)
- Shedrick L Garrett
- Department of Psychology & Neuroscience, University of North Carolina at Chapel Hill
| | - Kaitlyn Burnell
- Department of Psychology & Neuroscience, University of North Carolina at Chapel Hill
| | | | - Benjamin W Nelson
- Department of Psychology & Neuroscience, University of North Carolina at Chapel Hill
| | - Mitchell J Prinstein
- Department of Psychology & Neuroscience, University of North Carolina at Chapel Hill
| | - Eva H Telzer
- Department of Psychology & Neuroscience, University of North Carolina at Chapel Hill
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Volpe VV, Benson GP, Czoty L, Daniel C. Not Just Time on Social Media: Experiences of Online Racial/Ethnic Discrimination and Worse Sleep Quality for Black, Latinx, Asian, and Multi-racial Young Adults. J Racial Ethn Health Disparities 2023; 10:2312-2319. [PMID: 36125705 DOI: 10.1007/s40615-022-01410-7] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/30/2022] [Revised: 08/30/2022] [Accepted: 08/31/2022] [Indexed: 11/28/2022]
Abstract
Sleep quality in young adulthood sets the stage for long-term health. Racial/ethnic sleep disparities between White college-attending young adults and college-attending young adults of color exist. The stress of experiencing racial/ethnic discrimination makes it difficult for college-attending young adults of color to get good quality sleep. Yet it remains unclear if experiencing online racial/ethnic discrimination also has consequences for sleep quality, and if this association may vary by frequency of social media use. To investigate the role of racial/ethnic discrimination on sleep quality, we conducted an online survey of 154 college-attending young adults (Mage = 19.51) who identified as Black (42.2%), Latinx (16.9%), Asian (20.8%), or Bi-/multi-racial (20.1%) from a predominantly White university. Results indicated that more exposure to racial/ethnic discrimination was associated with worse sleep quality for young adults of color. Results suggest that online racial/ethnic discrimination has a similar negative impact on sleep quality regardless of the frequency of social media use. Increased attention to negative race-related experiences online as one potential risk factor for poor long-term health for young adults of color is needed, regardless of how many hours they spend on social media. Structural interventions, screening for stress due to exposure to online racial/ethnic discrimination, and facilitating opportunities to prepare for this exposure may be an important priority for sleep health and reduction of racial/ethnic health disparities.
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Affiliation(s)
- Vanessa V Volpe
- Department of Psychology, North Carolina State University, Campus Box 7650, Raleigh, NC, 27695, USA.
| | - G Perusi Benson
- Department of Psychology, North Carolina State University, Campus Box 7650, Raleigh, NC, 27695, USA
| | - Larsan Czoty
- Department of Psychology, North Carolina State University, Campus Box 7650, Raleigh, NC, 27695, USA
| | - Christiana Daniel
- Department of Psychology, North Carolina State University, Campus Box 7650, Raleigh, NC, 27695, USA
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Meyerson WU, Fineberg SK, Andrade FC, Corlett P, Gerstein MB, Hoyle RH. The association between evening social media use and delayed sleep may be causal: Suggestive evidence from 120 million Reddit timestamps. Sleep Med 2023; 107:212-218. [PMID: 37235891 DOI: 10.1016/j.sleep.2023.04.021] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 01/27/2023] [Revised: 03/29/2023] [Accepted: 04/18/2023] [Indexed: 05/28/2023]
Abstract
Public health officials and clinicians routinely advise social media users to avoid nighttime social media use due to the perception that this delays the onset of sleep and predisposes to the health risks of insufficient sleep. With some exceptions, the evidence behind this advice mostly derives from surveys identifying an association between self-reported social media usage and self-reported sleep patterns. In principle, these associations could alternatively be explained by users turning to social media to pass the time when they are otherwise having difficulty sleeping, or by individual differences that draw some people to frequent social media use, or by offline activities that overlap with both social media use and delayed sleep. To attempt to distinguish among these explanations, we leveraged estimated bedtimes from 44,000 Reddit users reported in a recent study and their 120 million posts to test whether the relationship between sleep and social media has properties suggestive of a causal relationship. We find that users are especially likely to be active on Reddit after their bedtime (and therefore awake) on nights that they posted to Reddit shortly before bedtime, especially if they posted multiple times or in high-engagement forums that night. Overall, this study lends additional support to the notion that there likely is some causal effect of evening social media use on delayed sleep onset.
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Affiliation(s)
- William U Meyerson
- Department of Psychiatry & Behavioral Sciences, Duke University School of Medicine, Durham, NC, USA; Department of Molecular Biochemistry & Biophysics, Yale University, New Haven, CT, USA; Program in Computational Biology & Bioinformatics, Yale University, New Haven, CT, USA.
| | | | - Fernanda C Andrade
- Department of Psychology and Neuroscience, Duke University, Durham, NC, USA
| | - Philip Corlett
- Department of Psychiatry, Yale University, New Haven, CT, USA; Wu Tsai Institute, Yale University, New Haven, CT, USA
| | - Mark B Gerstein
- Department of Molecular Biochemistry & Biophysics, Yale University, New Haven, CT, USA; Program in Computational Biology & Bioinformatics, Yale University, New Haven, CT, USA; Department of Computer Science, Yale University, New Haven, CT, USA; Department of Statistics & Data Science, Yale University, New Haven, CT, USA
| | - Rick H Hoyle
- Department of Psychology and Neuroscience, Duke University, Durham, NC, USA
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Madrid-Valero JJ, Matthews T, Barclay NL, Odgers CL, Moffitt TE, Caspi A, Arseneault L, Gregory AM. Problematic technology use and sleep quality in young adulthood: novel insights from a nationally representative twin study. Sleep 2023; 46:zsad038. [PMID: 37106487 PMCID: PMC10262182 DOI: 10.1093/sleep/zsad038] [Citation(s) in RCA: 2] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/14/2022] [Revised: 12/16/2022] [Indexed: 04/29/2023] Open
Abstract
STUDY OBJECTIVES Digital technology use is associated with poor sleep quality in adolescence and young adulthood although research findings have been mixed. No studies have addressed the association between the two using a genetically informative twin design which could extend our understanding of the etiology of this relationship. This study aimed to test: (1) the association between adolescents' perceived problematic use of digital technology and poor sleep quality, (2) whether the association between problematic use of technology and poor sleep quality remains after controlling for familial factors, and (3) genetic and environmental influences on the association between problematic use of technology and poor sleep quality. METHODS Participants were 2232 study members (18-year-old twins) of the Environmental Risk (E-Risk) Longitudinal Twin Study. The sample was 48.9% male, 90% white, and 55.6% monozygotic. We conducted regression and twin difference analyses and fitted twin models. RESULTS Twin differences for problematic use of technology were associated with differences for poor sleep quality in the whole sample (p < 0.001; B = 0.15) and also when we limited the analyses to identical twins only (p < 0.001; B = 0.21). We observed a substantial genetic correlation between problematic use of technology and sleep quality (rA = 0.31), whereas the environmental correlation was lower (rE = 0.16). CONCLUSIONS Adolescent reported problematic use of digital technology is associated with poor sleep quality-even after controlling for familial factors including genetic confounds. Our results suggest that the association between adolescents' sleep and problematic digital technology use is not accounted for by shared genetic liability or familial factors but could reflect a causal association. This robust association needs to be examined in future research designed to test causal associations.
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Affiliation(s)
- Juan J Madrid-Valero
- Department of Health Psychology, Faculty of Health Sciences, University of Alicante, Alicante, Spain
| | - Timothy Matthews
- Social, Genetic and Developmental Psychiatry Centre, Institute of Psychiatry, Psychology and Neuroscience, King’s College London, London, UK
| | - Nicola L Barclay
- Centre for Statistics in Medicine, Nuffield Department of Orthopaedics, Rheumatology, and Musculoskeletal Sciences, University of Oxford, Oxford, UK
| | - Candice L Odgers
- Department of Psychological Science, University of California, Irvine, Irvine, CA, USA
| | - Terrie E Moffitt
- Social, Genetic and Developmental Psychiatry Centre, Institute of Psychiatry, Psychology and Neuroscience, King’s College London, London, UK
- Departments of Psychology and Neuroscience, Psychiatry and Behavioral Sciences, and Institute for Genome Sciences and Policy, Duke University, Durham, NC, USA
| | - Avshalom Caspi
- Social, Genetic and Developmental Psychiatry Centre, Institute of Psychiatry, Psychology and Neuroscience, King’s College London, London, UK
- Departments of Psychology and Neuroscience, Psychiatry and Behavioral Sciences, and Institute for Genome Sciences and Policy, Duke University, Durham, NC, USA
| | - Louise Arseneault
- Social, Genetic and Developmental Psychiatry Centre, Institute of Psychiatry, Psychology and Neuroscience, King’s College London, London, UK
| | - Alice M Gregory
- Department of Psychology, Goldsmiths, University of London, London, UK
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Hamilton JL, Hutchinson E, Evankovich MR, Ladouceur CD, Silk JS. Daily and average associations of physical activity, social media use, and sleep among adolescent girls during the COVID-19 pandemic. J Sleep Res 2023; 32:e13611. [PMID: 35535484 PMCID: PMC9347531 DOI: 10.1111/jsr.13611] [Citation(s) in RCA: 10] [Impact Index Per Article: 10.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/14/2021] [Revised: 03/31/2022] [Accepted: 04/01/2022] [Indexed: 02/03/2023]
Abstract
Adolescents' daily lives have been disrupted during the Coronavirus disease 2019 (COVID-19) pandemic. It remains unclear how changes in adolescents' daily physical and social behaviours affect their sleep. The present study examined the daily and average effects of physical activity and social media use (i.e., video chatting, texting, and social networking sites) on adolescent girls' sleep during the COVID-19 pandemic. Adolescent girls aged 12-17 years (N = 93; 69% White) from a larger longitudinal study completed a 10-day daily diary protocol during state-mandated stay-at-home orders. Girls reported on daily sleep (duration, timing, quality), physical activity, and social media use during COVID-19. Multilevel modelling was used to examine the within- and between-person effects of physical activity and social media on sleep duration, timing, and quality during the 10-day period. Between-person associations indicate that youth with greater social media use (texting, video chatting, and social networking) and less physical activity had later sleep timing across the 10-day study period. Only video chatting was associated with shorter sleep duration. There were no within-person effects of physical activity or social media activities on sleep outcomes. Findings indicate that physical activity and social media use may impact later adolescent sleep timing during the COVID-19 pandemic. It will be critical for research to examine the potential long-term costs of delayed sleep timing, and whether targeting specific youth behaviours associated with sleep and circadian disruption improve mental and physical health during the COVID-19 pandemic and beyond.
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Affiliation(s)
| | | | | | | | - Jennifer S. Silk
- Department of Psychology, University of Pittsburgh
- University of Pittsburgh School of Medicine
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