Sleepiness, sleep duration, and human social activity: An investigation into bidirectionality using longitudinal time-use data
Publikation: Bidrag til tidsskrift › Tidsskriftartikel › Forskning › fagfællebedømt
Daytime sleepiness impairs cognitive ability, but recent evidence suggests it is also an important driver of human motivation and behavior. We aimed to investigate the relationship between sleepiness and a behavior strongly associated with better health: social activity. We additionally aimed to investigate whether a key driver of sleepiness, sleep duration, had a similar relationship with social activity. For these questions, we considered bidirectionality, time of day, and differences between workdays and days off. Over 3 wk, 641working adults logged their behavior every 30 min, completed a sleepiness scale every 3 h, and filled a sleep diary every morning (rendering >292,000 activity and >70,000 sleepiness datapoints). Using generalized additive mixed-effect models, we analyzed potential nonlinear relationships between sleepiness/sleep duration and social activity. Greater sleepiness predicted a substantial decrease in the probability of social activity (odds ratio 95% CI = 0.34 to 0.35 for days off), as well as a decreased duration of such activity when it did occur. These associations appear especially robust on days off and in the evenings. Social duration moderated the typical time-of-day pattern of sleepiness, with, for example, extended evening socializing associated with lower sleepiness. Sleep duration did not robustly predict next-day social activity. However, extensive social activity (>5 h) predicted up to 30 min shorter subsequent sleep duration. These results indicate that sleepiness is a strong predictor of voluntary decreases in social contact. It is possible that bouts of sleepiness lead to socialwithdrawal and loneliness, both risk factors for mental and physical ill health.
Originalsprog | Engelsk |
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Tidsskrift | Proceedings of the National Academy of Sciences of the United States of America |
Vol/bind | 117 |
Udgave nummer | 35 |
Sider (fra-til) | 21209-21217 |
Antal sider | 9 |
ISSN | 0027-8424 |
DOI | |
Status | Udgivet - 1 sep. 2020 |
Links
- https://www.ncbi.nlm.nih.gov/pmc/articles/PMC7474602/pdf/pnas.202004535.pdf
Forlagets udgivne version
ID: 255164558