Bruno Simone, Daddoveri Francesco, Di Galante Marco, Bazzani Andrea, Cruz-Sanabria Francy, Colitta Alessandro, d'Ascanio Paola, Frumento Paolo, Faraguna Ugo
Department of Translational Research and of New Surgical and Medical Technologies, University of Pisa, Pisa, Italy.
Department of Translational Research and of New Surgical and Medical Technologies, University of Pisa, Pisa, Italy.
Sleep Health. 2024 Dec;10(6):697-704. doi: 10.1016/j.sleh.2024.08.003. Epub 2024 Sep 28.
The present study aimed at exploring the association between eveningness and lifestyle-related variables, that is, body mass index, alcohol, and cigarette consumption, in adults (18-40years), focusing on the possible moderator effect of age and the role of sleep disturbances and circadian misalignment (social jetlag).
A web-based survey was administered to 437 participants, covering demographics, lifestyle-related variables, chronotype, sleep quality, and daytime sleepiness. A subset of 206 participants wore a wrist actigraph for a week, allowing the creation of a sleep health index within the RU-SATED framework. Regression analysis was used to investigate the associations between chronotype and lifestyle-related outcomes, accounting for social jetlag and sleep health; and to explore the lifestyle trajectories over time.
Evening chronotypes showed higher body mass index levels, consumed more alcohol, and smoked more cigarettes than other circadian typologies, in particular after 25 years of age. Poor sleep health and social jetlag significantly contribute to explaining evening types smoking behavior, while not affecting body mass index levels. Social jetlag plays a more important role compared to sleep disturbances and eveningness in predicting more detrimental drinking and smoking behavior.
Participants who maintain the evening trait past the age of 25years are more prone to adopt an unhealthy lifestyle, especially if experiencing poor sleep health and circadian misalignment. Circadian preferences and sleep health should be considered when planning interventions aimed at promoting healthy lifestyles in adults aged 18-40years. Further investigations should explore the effect of modifications in lifestyle in the prevention of noncommunicable diseases.
本研究旨在探讨成年人（18 - 40岁）的晚睡倾向与生活方式相关变量（即体重指数、酒精和香烟消费）之间的关联，重点关注年龄可能产生的调节作用以及睡眠障碍和昼夜节律失调（社会时差）的作用。
对437名参与者进行了基于网络的调查，涵盖人口统计学、生活方式相关变量、昼夜节律类型、睡眠质量和日间嗜睡情况。206名参与者的一个子集佩戴腕式活动记录仪一周，以便在RU - SATED框架内创建睡眠健康指数。采用回归分析来研究昼夜节律类型与生活方式相关结果之间的关联，同时考虑社会时差和睡眠健康；并探索随时间变化的生活方式轨迹。
与其他昼夜节律类型相比，晚睡型的体重指数水平更高，饮酒量更多，吸烟更多，尤其是在25岁之后。睡眠健康状况不佳和社会时差显著有助于解释晚睡型的吸烟行为，而对体重指数水平没有影响。在预测更有害的饮酒和吸烟行为方面，社会时差比睡眠障碍和晚睡倾向起着更重要的作用。
25岁以后仍保持晚睡特征的参与者更容易采取不健康的生活方式，尤其是在睡眠健康状况不佳和昼夜节律失调的情况下。在规划旨在促进18 - 40岁成年人健康生活方式的干预措施时，应考虑昼夜节律偏好和睡眠健康。进一步的研究应探索生活方式改变在预防非传染性疾病方面的效果。
