Bright Light Therapy for Psychiatry Residents: A Pilot Study of Feasibility and Perceived Impact on Wellbeing

Resident physicians often experience circadian rhythm disruptions due to long work hours and limited sunlight exposure, contributing to mood changes, fatigue, and reduced wellbeing. The objective of this study was to examine psychiatry residents' attitudes toward bright light therapy (BLT) in clinical workspaces and evaluate perceived impact on wellbeing.

From February 17 to May 19, 2025, 10,000 lx BLT boxes were placed in psychiatry resident workspaces at the University of North Carolina. Seventy-seven residents (post graduate year (PGY)1-5, consult liaison fellows, and child and adolescent psychiatry fellows) were eligible. Residents received instructions on BLT use, benefits, and risks, and were asked to log daily use anonymously. At the end of the study, usage logs and anonymous survey responses were collected to assess satisfaction, wellbeing impact, and suggestions.

Twenty-two residents participated, with 11 completing the post-study survey. Among those surveyed, 90% reported improved wellbeing and 90% were "mostly" or "very satisfied" with the intervention. Residents cited improved morning alertness, enhanced mood in dim environments, and ease of use as benefits. Common concerns included limited access and the light not fully replacing natural sunlight. Several expressed interest in continued use.

BLT was well received and perceived as beneficial. This pilot study suggests that BLT is a feasible, low-barrier intervention that may support resident wellness. Future directions include broader implementation, extended use periods, and integration with mental health screening tools.