Human research · observational
Zheng N et al., General Psychiatry 2026
In UK Biobank adults, higher wrist-sensor-measured daytime light exposure was associated with modestly lower incident dementia risk over about 8 years (HR 0.84; crude absolute difference about 0.05 percentage points). Nighttime light was not associated. Association only, not causation.
Source: Associations between wearable-device-measured daytime and nighttime light exposures and dementia risk: A prospective cohort study. Zheng N, Wang W, Li B, et al. General Psychiatry. 2026;39(3):e70039. doi:10.1002/gps3.70039
Verified research card EL-20261017-09