Prognosis

Sleep in Dimly Lit Room Can Be Bad for Your Health, Study Suggests

If you can see things well, it’s probably too light.

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Sleeping in the dark may reduce your risk of heart disease and diabetes, a new study suggests.

Exposure to overhead lighting during sleep at night, compared to sleeping in a dimly lit room, harms heart function during sleep and affects how well the body responds to insulin the next morning, researchers found.