Seasonal synchronization of sleep timing in industrial and pre-industrial societies.

ABSTRACT: Artificial light has reshaped human sleep/wake cycle in industrial societies and raised concern on the misalignment of this cycle relative to the light and dark cycle. This manuscript contrasts sleep timing in extratropical, industrial societies (data from eight national time use surveys in countries with Daylight Saving Time -DST- regulations) and Subtropical, pre-industrial societies with and without access to artificial light (data from nine locations coming from seven previous reports) against the cycle of light and dark. Within the two process model of sleep, results show sleep onset and sleep offset keep bound to each other by the homeostatic process. In winter, the photoreceptive process aligns the phase of the sleep/wake cycle to sunrise. As a result the phase increasingly lags wit

SUBMITTER: Martin-Olalla JM 

PROVIDER: S-EPMC6494851 | biostudies-literature | 2019 May

REPOSITORIES: biostudies-literature