DWQA Questions › Tag: rest period
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Researchers at Harvard University have shown that over time, prolonged exposure to blue light can cause damage to the retina at the back of the eye, which may lead to age-related macular degeneration (AMD) and possibly other serious health and vision problems. How significant a health problem is spending time watching cell phone, tablet, and computer screens?
ClosedNicola asked 4 years ago • 
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