Workplace lighting for improving alertness and mood in daytime workers.

CONCLUSIONS: There is very low-quality evidence based on two CBA studies that high CCT light may improve alertness, but not mood, in daytime workers. There is very low-quality evidence based on one CBA study that high CCT light may also cause less irritability, eye discomfort and headache than standard illumination. There is low-quality evidence based on one RCT that different proportions of direct and indirect light in the workplace do not affect alertness or mood. There is very low-quality evidence based on one RCT that individually applied blue-enriched light improves both alertness and mood. There is low-quality evidence based on one RCT that individually administered bright light during the afternoon is as effective as morning exposure for improving alertness and mood in subsyndromal seasonal affective disorder.
PMID: 29498416 [PubMed - as supplied by publisher]

Source: Cochrane Database of Systematic Reviews - March 2, 2018 Category: General Medicine Authors: Pachito DV, Eckeli AL, Desouky AS, Corbett MA, Partonen T, Rajaratnam SM, Riera R Tags: Cochrane Database Syst Rev Source Type: research