There are good reasons to hang blackout curtains at home, turn off the lights at night, and not read on your tablet before bed. Sleeping in complete darkness keeps you young, reduces your risk of cancer, and supports your immune system.
Read MoreThere are good reasons to hang blackout curtains at home, turn off the lights at night, and not read on your tablet before bed. Sleeping in complete darkness keeps you young, reduces your risk of cancer, and supports your immune system.
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