December 26, 2017
Rose
The glasses block the blue-wavelength light emitted from many hi-tech devices. That light suppresses the brain's production of melatonin, a hormone that regulates sleep and wake cycles.
from WebMD Health http://ift.tt/2l0wHii
December 26, 2017
Rose
Healthy Living, WebMD Health
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from WebMD Health http://ift.tt/2l0wHii
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