Exposure to outdoor artificial light at night is associated with a higher risk of ulcerative colitis: a prospective cohort study from the UK Biobank

Key Points

• Higher exposure to artificial light at night correlates with increased risk of ulcerative colitis, particularly in a dose-response manner.
• The significant link with ulcerative colitis did not extend to Crohn's disease, indicating disease-specific effects.
• The analysis utilized data from a large prospective cohort, providing robust evidence for the observed associations.
• Further studies are needed to understand how outdoor artificial light affects ulcerative colitis development and progression.