Sasawaki Yuh, Inokawa Hitoshi, Obata Yukiko, Nagao Suzune, Yagita Kazuhiro
Department of Physiology and Systems Bioscience, Kyoto Prefectural University of Medicine, Kyoto, Japan.
Department of Human Nutrition, Chugoku Gakuen University, Okayama, Japan.
J Sleep Res. 2023 Apr;32(2):e13661. doi: 10.1111/jsr.13661. Epub 2022 Jun 7.
A high prevalence of excessive daytime sleepiness and poor sleep quality has been reported in adolescents, but the effects of social jetlag on sleep quality and daytime sleepiness are unclear. Therefore, we assessed the association of sleep and eating patterns with daytime sleepiness and sleep quality among a total of 756 Japanese high school students. Participants completed the Pittsburgh Sleep Quality Index to evaluate sleep quality, the Pediatric Daytime Sleepiness Scale to evaluate daytime sleepiness, and an 8-day sleep diary. Data on average sleep duration, social jetlag, midsleep on free days sleep corrected, and the differences in the first and last meal timing between school days and non-school days were obtained from participants' sleep diaries. The results reveal that social jetlag is associated with differences in the first meal timing between school days and non-school days, and that social jetlag of more than 2 hr is associated with extremely poor sleep quality and excessive daytime sleepiness in Japanese high school students. Our findings suggest that reducing social jetlag to within a 2-hr window is important to prevent poor sleep quality and excessive daytime sleepiness for this population.
据报道，青少年中白天过度嗜睡和睡眠质量差的发生率很高，但社会时差对睡眠质量和白天嗜睡的影响尚不清楚。因此，我们评估了756名日本高中生的睡眠和饮食模式与白天嗜睡和睡眠质量之间的关联。参与者完成了匹兹堡睡眠质量指数以评估睡眠质量、儿科白天嗜睡量表以评估白天嗜睡情况，并记录了一份为期8天的睡眠日记。从参与者的睡眠日记中获取了平均睡眠时间、社会时差、休息日校正后的午睡时间，以及上学日和非上学日第一餐和最后一餐时间的差异数据。结果显示，社会时差与上学日和非上学日第一餐时间的差异有关，并且超过2小时的社会时差与日本高中生极差的睡眠质量和白天过度嗜睡有关。我们的研究结果表明，将社会时差减少到2小时以内对于预防该人群睡眠质量差和白天过度嗜睡很重要。
