Circadian-informed lighting improves vigilance, sleep, and subjective sleepiness during simulated night-shift work.

ABSTRACT:

Study objectives

Shiftwork is associated with cognitive impairment and reduced sleep time and quality, largely due to circadian misalignment. This study tested if circadian-informed lighting could improve cognitive performance and sleep during simulated night shifts versus dim control lighting.

Methods

Nineteen healthy participants (mean ± SD 29 ± 10 years, 12 males, 7 females) were recruited to a laboratory study consisting of two counterbalanced 8-day lighting conditions (order randomized) 1-month apart: (1) control lighting condition - dim, blue-depleted and (2) circadian-informed lighting condition - blue-enriched and blue-depleted where appropriate. Participants underwent an adaptation night (22:00-07:00 hours), then four nights of simulated night work (cognitive testin

SUBMITTER: Scott H 

PROVIDER: S-EPMC11543619 | biostudies-literature | 2024 Nov

REPOSITORIES: biostudies-literature