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Seasonal changes in sleep duration and sleep problems: A prospective study in Japanese community residents

BACKGROUND: A scientific understanding of the effects of seasonal changes on sleep duration and sleep problems such as insomnia and hypersomnia has yet to be elucidated; however, such an understanding could aid the establishment of an optimal sleep hygiene program to treat such problems. METHODS: We...

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Autores principales: Suzuki, Masahiro, Taniguchi, Tetsuya, Furihata, Ryuji, Yoshita, Katsushi, Arai, Yusuke, Yoshiike, Nobuo, Uchiyama, Makoto
Formato: Online Artículo Texto
Lenguaje:English
Publicado: Public Library of Science 2019
Materias:
Acceso en línea:https://www.ncbi.nlm.nih.gov/pmc/articles/PMC6472875/
https://www.ncbi.nlm.nih.gov/pubmed/30998709
http://dx.doi.org/10.1371/journal.pone.0215345
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author Suzuki, Masahiro
Taniguchi, Tetsuya
Furihata, Ryuji
Yoshita, Katsushi
Arai, Yusuke
Yoshiike, Nobuo
Uchiyama, Makoto
author_facet Suzuki, Masahiro
Taniguchi, Tetsuya
Furihata, Ryuji
Yoshita, Katsushi
Arai, Yusuke
Yoshiike, Nobuo
Uchiyama, Makoto
author_sort Suzuki, Masahiro
collection PubMed
description BACKGROUND: A scientific understanding of the effects of seasonal changes on sleep duration and sleep problems such as insomnia and hypersomnia has yet to be elucidated; however, such an understanding could aid the establishment of an optimal sleep hygiene program to treat such problems. METHODS: We investigated the effects of seasonal changes on sleep duration and sleep problems in Japanese community residents. Data on 1,388 individuals aged 15–89 years who participated in the Survey of Seasonal Variations in Food Intakes conducted by the National Institute of Health and Nutrition of Japan (2004–2007) were analyzed. Participants completed a questionnaire including items on sleep duration and sleep problems (difficulty initiating sleep [DIS], difficulty maintaining sleep [DMS]/early morning awakening [EMA], and excessive daytime sleepiness [EDS]). Data were prospectively collected at four time points (spring, summer, fall, and winter). RESULTS: Seasonal changes in sleep duration were found, with the longest in winter and the shortest in summer (winter–summer difference: 0.19 h). The seasonality of sleep duration was influenced by age, sex, and residential area. In terms of age, seasonal changes in sleep duration were found in the middle and old age groups, but not in the young age group. Seasonal changes in the frequencies of sleep problems were found for some items in the young age group (DMS/EMA and EDS) and middle age group (DIS and DMS/EMA); however, no such changes were observed in the old age group. CONCLUSION: Seasonal effects on sleep and sleep problems were found in Japanese community residents, but these varied between age groups. Furthermore, seasonal changes in sleep duration were influenced by sex and residential area.
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spelling pubmed-64728752019-05-03 Seasonal changes in sleep duration and sleep problems: A prospective study in Japanese community residents Suzuki, Masahiro Taniguchi, Tetsuya Furihata, Ryuji Yoshita, Katsushi Arai, Yusuke Yoshiike, Nobuo Uchiyama, Makoto PLoS One Research Article BACKGROUND: A scientific understanding of the effects of seasonal changes on sleep duration and sleep problems such as insomnia and hypersomnia has yet to be elucidated; however, such an understanding could aid the establishment of an optimal sleep hygiene program to treat such problems. METHODS: We investigated the effects of seasonal changes on sleep duration and sleep problems in Japanese community residents. Data on 1,388 individuals aged 15–89 years who participated in the Survey of Seasonal Variations in Food Intakes conducted by the National Institute of Health and Nutrition of Japan (2004–2007) were analyzed. Participants completed a questionnaire including items on sleep duration and sleep problems (difficulty initiating sleep [DIS], difficulty maintaining sleep [DMS]/early morning awakening [EMA], and excessive daytime sleepiness [EDS]). Data were prospectively collected at four time points (spring, summer, fall, and winter). RESULTS: Seasonal changes in sleep duration were found, with the longest in winter and the shortest in summer (winter–summer difference: 0.19 h). The seasonality of sleep duration was influenced by age, sex, and residential area. In terms of age, seasonal changes in sleep duration were found in the middle and old age groups, but not in the young age group. Seasonal changes in the frequencies of sleep problems were found for some items in the young age group (DMS/EMA and EDS) and middle age group (DIS and DMS/EMA); however, no such changes were observed in the old age group. CONCLUSION: Seasonal effects on sleep and sleep problems were found in Japanese community residents, but these varied between age groups. Furthermore, seasonal changes in sleep duration were influenced by sex and residential area. Public Library of Science 2019-04-18 /pmc/articles/PMC6472875/ /pubmed/30998709 http://dx.doi.org/10.1371/journal.pone.0215345 Text en © 2019 Suzuki et al http://creativecommons.org/licenses/by/4.0/ This is an open access article distributed under the terms of the Creative Commons Attribution License (http://creativecommons.org/licenses/by/4.0/) , which permits unrestricted use, distribution, and reproduction in any medium, provided the original author and source are credited.
spellingShingle Research Article
Suzuki, Masahiro
Taniguchi, Tetsuya
Furihata, Ryuji
Yoshita, Katsushi
Arai, Yusuke
Yoshiike, Nobuo
Uchiyama, Makoto
Seasonal changes in sleep duration and sleep problems: A prospective study in Japanese community residents
title Seasonal changes in sleep duration and sleep problems: A prospective study in Japanese community residents
title_full Seasonal changes in sleep duration and sleep problems: A prospective study in Japanese community residents
title_fullStr Seasonal changes in sleep duration and sleep problems: A prospective study in Japanese community residents
title_full_unstemmed Seasonal changes in sleep duration and sleep problems: A prospective study in Japanese community residents
title_short Seasonal changes in sleep duration and sleep problems: A prospective study in Japanese community residents
title_sort seasonal changes in sleep duration and sleep problems: a prospective study in japanese community residents
topic Research Article
url https://www.ncbi.nlm.nih.gov/pmc/articles/PMC6472875/
https://www.ncbi.nlm.nih.gov/pubmed/30998709
http://dx.doi.org/10.1371/journal.pone.0215345
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