Research
Less Than 42 Minutes of Bright Light Daily Is a Stronger Predictor of Dementia Than Obesity, Study Finds
ScienceAlert · By Carly Cassella ·
The Brief
- A study links less than 42 minutes of bright light daily to dementia risk.
- The study reports this measure as a stronger predictor of dementia than obesity.
- The source is a ScienceAlert report published 2026-11-07; the full study details were not provided.
Why it matters
If daily light exposure predicts dementia risk better than obesity does, it may be a useful early signal for brain health, though the source gives no details on how the link was measured.
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