Circadian phase advances in children during camping life according to the natural light-dark cycle.

ABSTRACT:

Background

It is known that the circadian rhythm phase in adults can be advanced in a natural light-dark cycle without electrical lighting. However, the effect of advanced sleep-wake timing according to the natural light-dark cycle on children's circadian phase is unclear. We investigated the effects of approximately 2 weeks of camping life with little access to artificial lighting on children's circadian phases. We also conducted an exploratory examination on the effects of wake time according to natural sunrise time on the manner of the advance of their circadian phases.

Methods

Twenty-one healthy children (mean ± SD age, 10.6 ± 1.4 years) participated in a camping program with wake time (4:00) being earlier than sunrise time (EW condition), and 21 healthy children (10.4 ±

SUBMITTER: Eto T 

PROVIDER: S-EPMC9756595 | biostudies-literature | 2022 Dec

REPOSITORIES: biostudies-literature