Type: Crossover randomized controlled trial
Registration: PMCID: PMC6234544
Status: Published
Tags: Fatigue & alertness, Light & environment, Nurses, RCT
External URL: https://pmc.ncbi.nlm.nih.gov/articles/PMC6234544/
High‑intensity light during nights reduced post‑shift sleepiness; some trade‑offs noted in performance metrics.
This crossover design how night‑shift patterns relate to mood and stress, and how they found sleep & alertness for night‑shift workers and night owls. It situates sleep‑mood changes within schedule patterns, validating experiences many night workers already recognize. For night workers and night owls, the signal helps explain why the same rota can feel markedly different across weeks and people.
ICU setting; objective and subjective measures.