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Effects of the COVID-19 lockdown on human sleep and rest-activity rhythms.
Blume, Christine; Schmidt, Marlene H; Cajochen, Christian.
  • Blume C; Centre for Chronobiology, Psychiatric Hospital of the University of Basel, Wilhelm-Klein-Str. 27, CH-4002 Basel, Switzerland; Transfaculty Research Platform Molecular and Cognitive Neurosciences, University of Basel, Birmannsgasse 8, CH-4055 Basel, Switzerland. Electronic address: christine.blume@upk.ch.
  • Schmidt MH; Centre for Chronobiology, Psychiatric Hospital of the University of Basel, Wilhelm-Klein-Str. 27, CH-4002 Basel, Switzerland; Transfaculty Research Platform Molecular and Cognitive Neurosciences, University of Basel, Birmannsgasse 8, CH-4055 Basel, Switzerland.
  • Cajochen C; Centre for Chronobiology, Psychiatric Hospital of the University of Basel, Wilhelm-Klein-Str. 27, CH-4002 Basel, Switzerland; Transfaculty Research Platform Molecular and Cognitive Neurosciences, University of Basel, Birmannsgasse 8, CH-4055 Basel, Switzerland.
Curr Biol ; 30(14): R795-R797, 2020 07 20.
Article in English | MEDLINE | ID: covidwho-592273
Semantic information from SemMedBD (by NLM)
1. Sleep PROCESS_OF Homo sapiens
Subject
Sleep
Predicate
PROCESS_OF
Object
Homo sapiens
2. Conflict (Psychology) PROCESS_OF Poles
Subject
Conflict (Psychology)
Predicate
PROCESS_OF
Object
Poles
3. Jet Lag Syndrome AFFECTS Negative
Subject
Jet Lag Syndrome
Predicate
AFFECTS
Object
Negative
4. Societies LOCATION_OF Experimental Design
Subject
Societies
Predicate
LOCATION_OF
Object
Experimental Design
5. Sleep PROCESS_OF Homo sapiens
Subject
Sleep
Predicate
PROCESS_OF
Object
Homo sapiens
6. Conflict (Psychology) PROCESS_OF Poles
Subject
Conflict (Psychology)
Predicate
PROCESS_OF
Object
Poles
7. Jet Lag Syndrome AFFECTS Negative
Subject
Jet Lag Syndrome
Predicate
AFFECTS
Object
Negative
8. Societies LOCATION_OF Experimental Design
Subject
Societies
Predicate
LOCATION_OF
Object
Experimental Design
ABSTRACT
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.
Subject(s)

Full text: Available Collection: International databases Database: MEDLINE Main subject: Periodicity / Pneumonia, Viral / Sleep / Communicable Disease Control / Coronavirus Infections Type of study: Experimental Studies / Observational study Limits: Humans Country/Region as subject: Europa Language: English Journal: Curr Biol Journal subject: Biology Year: 2020 Document Type: Article

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Full text: Available Collection: International databases Database: MEDLINE Main subject: Periodicity / Pneumonia, Viral / Sleep / Communicable Disease Control / Coronavirus Infections Type of study: Experimental Studies / Observational study Limits: Humans Country/Region as subject: Europa Language: English Journal: Curr Biol Journal subject: Biology Year: 2020 Document Type: Article