Effects of the COVID-19 lockdown on human sleep and rest-activity rhythms
Open accessAbstract
In modern societies, human rest-activity rhythms and sleep result from the tensions and dynamics between the conflicting poles of external social time (e.g., work hours and leisure activities) and an individual's internal biological time. A mismatch between the two has been suggested to induce 'social jetlag' [1] and 'social sleep restriction', that is, shifts in sleep timing and differences in sleep duration between work days and free days. Social jetlag [2,3] and sleep restrictions [4] have repeatedly been associated with negative consequences on health, mental wellbeing, and performance. In a large-scale quasi-experimental design, we investigated the effects of the phase with the most rigorous COVID-19 restrictions on the relationship between social and biological rhythms as well as sleep during a six-week period (mid-March until end of April 2020) in three European societies (Austria, Germany, Switzerland). We found that, on one hand, the restrictions reduced the mismatch between external (social) and internal (biological) sleep-wake timing, as indexed by significant reductions in social jetlag and social sleep restriction, with a concomitant increase in sleep duration. Sleep quality on the other hand was slightly reduced. The improved individual sleep-wake timing can presumably be attributed to an increased flexibility of social schedules, for instance due to more work being accomplished from home. However, this unprecedented situation also led to a significant increase in self-perceived burden, which was attendant to the decrease in sleep quality. These adverse effects may be alleviated by exposure to natural daylight as well as physical exercise.
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Disrupted routines during the pandemic resulted in significant changes in sleep.
“Indeed, disrupted routines during the pandemic has resulted in significant changes in sleep.(Blume et al., 2020; Wright et al., 2020)”
From Younger people are more vulnerable to stress, anxiety and depression during COVID-19 pandemic: a global cross-sectional survey (2021) · cites this paper as Blume et al., 2020
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Social Jetlag: Misalignment of Biological and Social Time
Wittmann, M., Dinich, J., Merrow, M., & Roenneberg, T. (2006) · Chronobiology International · doi:10.1080/07420520500545979 · Cited by 2,625 · see citing works
Depression scores associate with chronotype and social jetlag in a rural population
Levandovski, R., Dantas, G., Fernandes, L. C., Caumo, W., Torres, I., Roenneberg, T., Hidalgo, M. P. L., & Allebrandt, K. V. (2011) · Chronobiology International · doi:10.3109/07420528.2011.602445 · Cited by 527 · see citing works
Social jetlag, chronotype, and cardiometabolic risk
Wong, P. M., Hasler, B. P., Kamarck, T. W., Muldoon, M. F., & Manuck, S. B. (2015) · The Journal of Clinical Endocrinology & Metabolism · doi:10.1210/jc.2015-2923 · Cited by 444 · see citing works
Depner, C. M., Melanson, E. L., Eckel, R. H., Snell-Bergeon, J. K., Perreault, L., Bergman, B. C., Higgins, J. A., Guerin, M. K., Stothard, E. R., Morton, S. J., et al. (2019) · Current Biology · doi:10.1016/j.cub.2019.01.069 · Cited by 203 · see citing works
The µMCTQ: An Ultra-Short Version of the Munich ChronoType Questionnaire
Ghotbi, N., Pilz, L. K., Winnebeck, E. C., Vetter, C., Zerbini, G., Lenssen, D., Frighetto, G., Salamanca, M., Costa, R., Montagnese, S., et al. (2019) · Journal of Biological Rhythms · doi:10.1177/0748730419886986 · Cited by 159 · see citing works
Differential impact of chronotype on weekday and weekend sleep timing and duration
Duffy, J. F., & Roepke (2010) · Nature and Science of Sleep · doi:10.2147/nss.s12572 · Cited by 134 · see citing works
The Swiss Corona Stress StudyPreprint
de Quervain, D. J. ‐., Aerni, A., Amini, E., Bentz, D., Coynel, D., Gerhards, C., Fehlmann, B., Freytag, V., Papassotiropoulos, A., Schicktanz, N. S., et al. (2020) · doi:10.31219/osf.io/jqw6a · Cited by 89 · see citing works
Raman, S., & Coogan, A. N. (2019) · Clocks & Sleep · doi:10.3390/clockssleep2010001 · Cited by 25 · see citing works
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- [6]Blume C. Schmidt M. Cajochen C. Sleep and social jetlag during COVID-19 Open Science Framework 2020 10.17605/osf.io/mhsw8 · DOI
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Varma, P., Junge, M., Meaklim, H., & Jackson, M. L. (2021) · Progress in Neuro-Psychopharmacology and Biological Psychiatry · doi:10.1016/j.pnpbp.2020.110236 · Cited by 719 · see citing works
Korman, M., Tkachev, V., Reis, C., Komada, Y., Kitamura, S., Gubin, D., Kumar, V., & Roenneberg, T. (2020) · Scientific Reports · doi:10.1038/s41598-020-79299-7 · Cited by 161 · see citing works
Meaklim, H., Junge, M. F., Varma, P., Finck, W. A., & Jackson, M. L. (2021) · Journal of Clinical Sleep Medicine · doi:10.5664/jcsm.9354 · Cited by 74 · see citing works
Coiro, M. J., Asraf, K., Tzischinsky, O., Hadar-Shoval, D., Tannous-Haddad, L., & Wolfson, A. R. (2021) · Sleep Health · doi:10.1016/j.sleh.2021.02.006 · Cited by 58 · see citing works
Subjective sleep quality before and during the COVID-19 pandemic in a Brazilian rural population
Taporoski, T. P., Beijamini, F., Gómez, L. M., Ruiz, F. S., Ahmed, S. S., von Schantz, M., Pereira, A. C., & Knutson, K. L. (2022) · Sleep Health · doi:10.1016/j.sleh.2021.11.007 · Cited by 28 · see citing works
Bazzani, A., Marantonio, S., Andreozzi, G., Lorenzoni, V., Bruno, S., Cruz-Sanabria, F., d’Ascanio, P., Turchetti, G., & Faraguna, U. (2022) · Appetite · doi:10.1016/j.appet.2022.105951 · Cited by 22 · see citing works
Meaklim, H., Junge, M. F., Varma, P., Finck, W. A., & Jackson, M. L. (2023) · Behavioral Sleep Medicine · doi:10.1080/15402002.2022.2074996 · Cited by 9 · see citing works
- Authors
- Blume, C., Schmidt, M. H., & Cajochen, C.
- Affiliations
- University of Basel (CH)
- Corresponding author
- Blume, Christine
- Venue
- Current Biology
- Publisher
- Elsevier BV
- Published
- 2020-07
- Volume
- 30
- Issue
- 14
- Pages
- R795-R797
- ISSN
- 0960-9822 (ISSN-L)
- PMC
- PMC7284244
- OpenAlex
- W3033696832
- Cited by
- 298
- References
- 8
- Citations by year
- 2026: 7 · 2025: 14 · 2024: 20 · 2023: 41 · 2022: 83 · 2021: 99 · 2020: 34
- FWCI
- 62.16
- Type
- journal article
- Language
- en
- Open access
- bronze
- doi.org
- Licence
- Locations
- Current Biology (publishedVersion)
- PubMed Central (publishedVersion)
- PubMed (publishedVersion)
- Funders
- Novartis Foundation
- Austrian Science Fund
- Freiwillige Akademische Gesellschaft
- Topics
- Social Sciences › Psychology › Experimental and Cognitive Psychology › Sleep and related disorders
- Life Sciences › Neuroscience › Endocrine and Autonomic Systems › Circadian rhythm and melatonin
- Social Sciences › Psychology › Experimental and Cognitive Psychology › Sleep and Work-Related Fatigue
- Keywords
- COVID-19 lockdown, social jetlag, rest-activity rhythm, sleep duration, sleep quality, biological time, social time, working from home, self-perceived burden, daylight exposure, physical activity, circadian rhythm
- MeSH terms
- COVID-19, Austria, Communicable Disease Control, Germany, Humans, Periodicity, Pneumonia, Viral, Sleep, Switzerland, Coronavirus Infections, Chronobiology Disorders, Pandemics
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