Chronobiology international

Timed light and dark exposure resets daily stress hormone cycle in night shift workers

Circadian Biology Weekly Brief ↗PubMed ↗DOI ↗

Updated

Abstract

Night shift workers receiving a light/darkness intervention showed significant shifts in cortisol expression timing.

  • Intervention included bright light exposure and shielding from morning light.
  • Treatment group exhibited realignment of their physiological rhythms with night-oriented schedules.
  • Control group demonstrated only smaller phase shifts, indicating incomplete adaptation.
  • Findings suggest that managing light and darkness exposure may aid in adjusting physiological responses to night shift work.

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