Study Reveals A Surprising Link Between Light Exposure And Dementia Risk
Researchers also observed that getting less than 42 minutes a day of bright daylight was a better predictor of dementia than six established risk factors: alcohol consumption, obesity, hearing loss, traumatic brain injury, air pollution and vitamin D supplement use.
Article source: https://www.huffingtonpost.co.uk/entry/lack-of-daylight-dementia-risk_uk_6aeba06de4b08d8d4a8d7169