ISSN 1671-3710
CN 11-4766/R

• •    


何美亨1, 汝涛涛2   

  1. 1. 华南师范大学
    2. 华南师范大学国家绿色光电子国际联合研究中心
  • 收稿日期:2022-08-21 修回日期:2022-12-02 发布日期:2023-01-18
  • 通讯作者: 汝涛涛
  • 基金资助:

Optimal Effects and Mechanisms of Daytime Light Exposure on Sleep

  • Received:2022-08-21 Revised:2022-12-02 Published:2023-01-18

摘要: 光照作为最重要的授时因子,对有机体的昼夜节律与睡眠具有显著的调节作用。已有研究发现日间更高的光照水平,特别是晨间高强度光照会改善个体的夜间睡眠;但这一优化效果会受到光照参数和个体特征等的调节。日间光照可以通过前置或者延迟机体的生物节律进而对睡眠产生间接影响;而日光暴露是否会通过调节睡眠内稳态压力直接影响睡眠尚不明晰。未来研究可探究日光不同参数与睡眠的因果关系,面向特定人群如长期室内工作者或睡眠障碍群体构建健康人因照明模式。

关键词: 日间光照, 睡眠优化, 光照模式, 作用机制, 生物节律

Abstract: As a dominant Zeitgeber, ambient light can affect sleep-wake behavior patterns in humans. Higher light levels or light amounts during the daytime, especially during the morning, positively predict nighttime sleep quality, but this effect is mediated by the parameters of daytime light exposure (e.g., light level, time of day, duration, light pattern). On the one hand, light can directly affect sleep through the projection of melanopsin expressed by intrinsically photosensitive retinal ganglion cells (ipRGCs) to sleep- and wakefulness-related brain regions; on the other hand, light can also indirectly influence the sleep-wake cycle by regulating individuals’ circadian rhythms through the SCN. However, there is still no clear consensus on whether light can affect the sleep homeostatic process in individuals. Future research should address the specificities and differences of different populations and places to build healthy and comfortable light environments to improve people’s sleep and enhance their physical and mental health.

Key words: daytime light, optimized sleep, light mode, mechanism, circadian rhythm