Association between temperature rise from climate normal and sleep quality

Abstract While there are numerous studies on the association between climate change and poor sleep quality, there are few studies on large population with a validated outcome measure that can portray a various aspects of poor sleep quality. A total of 211,159 participants from Korean Community Healt...

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Main Authors: Horim A. Hwang, Ayoung Kim, Jiwoo Park, Whanhee Lee, Hyun-Joo Bae, Sanghyuk Bae
Format: Article
Language:English
Published: Nature Portfolio 2025-08-01
Series:Scientific Reports
Subjects:
Online Access:https://doi.org/10.1038/s41598-025-15315-y
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author Horim A. Hwang
Ayoung Kim
Jiwoo Park
Whanhee Lee
Hyun-Joo Bae
Sanghyuk Bae
author_facet Horim A. Hwang
Ayoung Kim
Jiwoo Park
Whanhee Lee
Hyun-Joo Bae
Sanghyuk Bae
author_sort Horim A. Hwang
collection DOAJ
description Abstract While there are numerous studies on the association between climate change and poor sleep quality, there are few studies on large population with a validated outcome measure that can portray a various aspects of poor sleep quality. A total of 211,159 participants from Korean Community Health survey 2018 were included to assess the impact of temperature rise on sleep quality. The primary independent variables are temperature average and temperature difference. Temperature average is yearly average temperature of each district, while temperature difference is the difference between yearly average temperature and climate normal derived from 1961 to 1990. The main outcome is overall sleep quality and sleep components measured by the Pittsburgh sleep quality index. Of the participants, 120,166 (81.48%) were dwelling in urban districts. Urban participants were more likely to report poor sleep quality per 1 °C increase in temperature difference (aOR 1.16 95% CI 1.05–1.29), while 1 °C increase in average temperature was not associated with poorer overall sleep quality. The temperature difference was also associated with shorter sleep duration, sleep fragmentation, bad dreams, too cold, cough or snore, and pain during sleep time. The increase in temperature compared to climate normal was associated with higher prevalence of poor sleep quality. More research on the climate change’s long-term impact on sleep quality is needed.
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spelling doaj-art-8317f95e6c414f92b5a8166bfdd897972025-08-20T03:42:22ZengNature PortfolioScientific Reports2045-23222025-08-011511910.1038/s41598-025-15315-yAssociation between temperature rise from climate normal and sleep qualityHorim A. Hwang0Ayoung Kim1Jiwoo Park2Whanhee Lee3Hyun-Joo Bae4Sanghyuk Bae5Department of Preventive Medicine, College of Medicine, The Catholic University of KoreaDepartment of Public Health Sciences, Graduate School of Public Health, Seoul National UniversityDepartment of Information Convergence Engineering, College of Information and Biomedical Engineering, Pusan UniversitySchool of Biomedical Convergence Engineering, College of Information and Biomedical Engineering, Pusan UniversityDivision for Environmental Health, Korea Environment InstituteDepartment of Preventive Medicine, College of Medicine, The Catholic University of KoreaAbstract While there are numerous studies on the association between climate change and poor sleep quality, there are few studies on large population with a validated outcome measure that can portray a various aspects of poor sleep quality. A total of 211,159 participants from Korean Community Health survey 2018 were included to assess the impact of temperature rise on sleep quality. The primary independent variables are temperature average and temperature difference. Temperature average is yearly average temperature of each district, while temperature difference is the difference between yearly average temperature and climate normal derived from 1961 to 1990. The main outcome is overall sleep quality and sleep components measured by the Pittsburgh sleep quality index. Of the participants, 120,166 (81.48%) were dwelling in urban districts. Urban participants were more likely to report poor sleep quality per 1 °C increase in temperature difference (aOR 1.16 95% CI 1.05–1.29), while 1 °C increase in average temperature was not associated with poorer overall sleep quality. The temperature difference was also associated with shorter sleep duration, sleep fragmentation, bad dreams, too cold, cough or snore, and pain during sleep time. The increase in temperature compared to climate normal was associated with higher prevalence of poor sleep quality. More research on the climate change’s long-term impact on sleep quality is needed.https://doi.org/10.1038/s41598-025-15315-yClimate changeTemperatureSleep qualityCommunity survey
spellingShingle Horim A. Hwang
Ayoung Kim
Jiwoo Park
Whanhee Lee
Hyun-Joo Bae
Sanghyuk Bae
Association between temperature rise from climate normal and sleep quality
Scientific Reports
Climate change
Temperature
Sleep quality
Community survey
title Association between temperature rise from climate normal and sleep quality
title_full Association between temperature rise from climate normal and sleep quality
title_fullStr Association between temperature rise from climate normal and sleep quality
title_full_unstemmed Association between temperature rise from climate normal and sleep quality
title_short Association between temperature rise from climate normal and sleep quality
title_sort association between temperature rise from climate normal and sleep quality
topic Climate change
Temperature
Sleep quality
Community survey
url https://doi.org/10.1038/s41598-025-15315-y
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