Source: Will Stone, NPR, 4/1/22


Turning off the lights and closing the curtains isn't exactly a catchy, new sleep hygiene hack, but this common sense advice is gaining even more scientific credibility. Many Americans sleep in a room that's punctuated with some form of artificial light — whether it's coming from a TV, a jumble of electronics or an intrusive streetlight. New research suggests that one night of sleep with just a moderate amount of light may have adverse effects on cardiovascular and metabolic health.

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