A surprising 40 percent of all Americans sleep with some form of light in the room, and scientists now say this might not be such a “bright” idea.  In fact, while it might be pleasant to wake to the dawning sun streaming across your face, this may not be ideal for restful sleep either.
A brand-new study from researchers at Northwestern University shows that even moderate exposure to light – such as that emitted by a bedside lamp, TV, or laptop – during sleep can have unexpected health consequences.  So let’s find out how light exposure during sleep is harmful to metabolic health and why darkness is best.
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