ArticleJournal of sleep research2022
Outdoor daylight exposure and longer sleep promote wellbeing under COVID-19 mandated restrictions.
Article in Journal of sleep research, 2022. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 21 papers.
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Who cites it
21 citing papers in PubMed.
- The Circadian-Light-Hygiene Hypothesis: A Potential Modulator of Fertility and Birthrate Trends.Biology · 2026Review
- Racial Discrimination Predicting Sleep: Examining Social Media and Television/Digital Media use During the COVID-19 Pandemic as Moderators among College Students of Color.Journal of racial and ethnic health disparities · 2026Article
- Article
- Sleep and circadian rhythms in delayed sleep-wake phase disorder: Phenotypic differences between patients with and without comorbid depression.Journal of sleep research · 2025Article
- Individual associations of self-reported sleep duration, sleep quality, chronotype and social jet lag with infectious disease risk.Philosophical transactions of the Royal Society of London. Series B, Biological sciences · 2025Article
- The Effect of Light on Wellbeing: A Systematic Review and Meta-analysis.Journal of happiness studies · 2025Review
- The Association Between Chronotype and Weight Change Among Medical Students: A Cross-Sectional Study.Diabetes, metabolic syndrome and obesity : targets and therapy · 2025Article
- Usability and feasibility of an online intervention for older adults to support changes to routines and the home ('Light, activity and sleep in my daily life').BMC public health · 2024Article
- Article
- More frequent naps are associated with lower cognitive development in a cohort of 8-38-month-old children, during the Covid-19 pandemic.JCPP advances · 2023Article
- Towards the new generation of courtyard buildings as a healthy living concept for post-pandemic era.Sustainable cities and society · 2023Article
- Time Spent Outdoors and Associations with Sleep, Optimism, Happiness and Health before and during the COVID-19 Pandemic in Austria.Clocks & sleep · 2023Article
- Article
- Desynchronized daily activity rhythms and gender related psychological well-being of Moroccan university students during the quarantine-isolation.Journal of education and health promotion · 2023Article
- Article
- Outdoor daylight exposure and longer sleep promote wellbeing under COVID-19 mandated restrictions.Journal of sleep research · 2022Article
- Association Between Emotional Eating, Sociodemographic Characteristics, Physical Activity, Sleep Duration, and Mental and Physical Health in Young Adults.Journal of multidisciplinary healthcare · 2022Article
- The Relationship Between Circadian Typology and Dry Eye Symptoms in Chinese College Students.Nature and science of sleep · 2022Article
- Association of Delayed Sleep/Wake Rhythm with Depression During the First COVID-19 Lockdown in France.Nature and science of sleep · 2022Article
- Effects of loneliness and social isolation on sleep health.Sleep and biological rhythms · 2022Article
Corrections and comments
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Authors and funding
8 authors.
Funding
No grant is acknowledged in the PubMed record.
Abstract
Light is an important regulator of daily human physiology in providing time-of-day information for the circadian clock to stay synchronised with the 24-hr day. The coronavirus disease 2019 (COVID-19) pandemic led to social restrictions in many countries to prevent virus spreading, restrictions that dramatically altered daily routines and limited outdoor daylight exposure. We previously reported that sleep duration increased, social jetlag decreased, and mid-sleep times delayed during social restrictions (Global Chrono Corona Survey, N = 7,517). In the present study, we investigated in the same dataset changes in wellbeing and their link to outdoor daylight exposure, and sleep-wake behaviour. In social restrictions, median values of sleep quality, quality of life, physical activity and productivity deteriorated, while screen time increased, and outdoor daylight exposure was reduced by ~58%. Yet, many survey participants also reported no changes or even improvements. Larger reductions in outdoor daylight exposure were linked to deteriorations in wellbeing and delayed mid-sleep times. Notably, sleep duration was not associated with outdoor daylight exposure loss. Longer sleep and decreased alarm-clock use dose-dependently correlated with changes in sleep quality and quality of life. Regression analysis for each wellbeing aspect showed that a model with six predictors including both levels and their deltas of outdoor daylight exposure, sleep duration and mid-sleep timing explained 5%-10% of the variance in changes of wellbeing scores (except for productivity). As exposure to daylight may extenuate the negative effects of social restriction and prevent sleep disruption, public strategies during pandemics should actively foster spending more daytime outdoors.
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