Chronotype delay and sleep disturbances shaped by the Antarctic polar night
Abstract Chronotype is a reliable biomarker for studying the influence of external zeitgebers on circadian entrainment. Assessment of chronotype variation in participants exposed to extreme photoperiods may be useful to investigate how changes in light–dark cycle modulate the circadian system. This...
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ftdoajarticles:oai:doaj.org/article:842f84f00c5d4adf869390ec90ab767e 2023-11-05T03:36:54+01:00 Chronotype delay and sleep disturbances shaped by the Antarctic polar night C. Tortello A. Folgueira J. M. Lopez F. Didier Garnham E. Sala Lozano M. S. Rivero G. Simonelli D. E. Vigo S. A. Plano 2023-09-01T00:00:00Z https://doi.org/10.1038/s41598-023-43102-0 https://doaj.org/article/842f84f00c5d4adf869390ec90ab767e EN eng Nature Portfolio https://doi.org/10.1038/s41598-023-43102-0 https://doaj.org/toc/2045-2322 doi:10.1038/s41598-023-43102-0 2045-2322 https://doaj.org/article/842f84f00c5d4adf869390ec90ab767e Scientific Reports, Vol 13, Iss 1, Pp 1-9 (2023) Medicine R Science Q article 2023 ftdoajarticles https://doi.org/10.1038/s41598-023-43102-0 2023-10-08T00:39:23Z Abstract Chronotype is a reliable biomarker for studying the influence of external zeitgebers on circadian entrainment. Assessment of chronotype variation in participants exposed to extreme photoperiods may be useful to investigate how changes in light–dark cycle modulate the circadian system. This study aimed to examine chronotype and sleep changes during a winter campaign at the Argentine Antarctic station Belgrano II. A sample of 82 men who overwintered in Antarctica completed the Munich Chronotype Questionnaire during March (daylight length: 18.6 h), May (daylight length: 2.8 h), July (daylight length: 0 h), September (daylight length: 14.5 h), November (daylight length: 24 h). The main results showed a decrease in sleep duration and a delay in chronotype and social jetlag during the polar night, highlighting the influence of social cues and the impact of the lack of natural light on circadian rhythms. Article in Journal/Newspaper Antarc* Antarctic Antarctica polar night Directory of Open Access Journals: DOAJ Articles Scientific Reports 13 1 |
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Medicine R Science Q |
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Medicine R Science Q C. Tortello A. Folgueira J. M. Lopez F. Didier Garnham E. Sala Lozano M. S. Rivero G. Simonelli D. E. Vigo S. A. Plano Chronotype delay and sleep disturbances shaped by the Antarctic polar night |
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Medicine R Science Q |
description |
Abstract Chronotype is a reliable biomarker for studying the influence of external zeitgebers on circadian entrainment. Assessment of chronotype variation in participants exposed to extreme photoperiods may be useful to investigate how changes in light–dark cycle modulate the circadian system. This study aimed to examine chronotype and sleep changes during a winter campaign at the Argentine Antarctic station Belgrano II. A sample of 82 men who overwintered in Antarctica completed the Munich Chronotype Questionnaire during March (daylight length: 18.6 h), May (daylight length: 2.8 h), July (daylight length: 0 h), September (daylight length: 14.5 h), November (daylight length: 24 h). The main results showed a decrease in sleep duration and a delay in chronotype and social jetlag during the polar night, highlighting the influence of social cues and the impact of the lack of natural light on circadian rhythms. |
format |
Article in Journal/Newspaper |
author |
C. Tortello A. Folgueira J. M. Lopez F. Didier Garnham E. Sala Lozano M. S. Rivero G. Simonelli D. E. Vigo S. A. Plano |
author_facet |
C. Tortello A. Folgueira J. M. Lopez F. Didier Garnham E. Sala Lozano M. S. Rivero G. Simonelli D. E. Vigo S. A. Plano |
author_sort |
C. Tortello |
title |
Chronotype delay and sleep disturbances shaped by the Antarctic polar night |
title_short |
Chronotype delay and sleep disturbances shaped by the Antarctic polar night |
title_full |
Chronotype delay and sleep disturbances shaped by the Antarctic polar night |
title_fullStr |
Chronotype delay and sleep disturbances shaped by the Antarctic polar night |
title_full_unstemmed |
Chronotype delay and sleep disturbances shaped by the Antarctic polar night |
title_sort |
chronotype delay and sleep disturbances shaped by the antarctic polar night |
publisher |
Nature Portfolio |
publishDate |
2023 |
url |
https://doi.org/10.1038/s41598-023-43102-0 https://doaj.org/article/842f84f00c5d4adf869390ec90ab767e |
genre |
Antarc* Antarctic Antarctica polar night |
genre_facet |
Antarc* Antarctic Antarctica polar night |
op_source |
Scientific Reports, Vol 13, Iss 1, Pp 1-9 (2023) |
op_relation |
https://doi.org/10.1038/s41598-023-43102-0 https://doaj.org/toc/2045-2322 doi:10.1038/s41598-023-43102-0 2045-2322 https://doaj.org/article/842f84f00c5d4adf869390ec90ab767e |
op_doi |
https://doi.org/10.1038/s41598-023-43102-0 |
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Scientific Reports |
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13 |
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1 |
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1781692162697592832 |