Blue light is a high-energy part of visible light from the sun, screens, and light-emitting diode (LED) bulbs. Your cornea and lens don’t block blue light the way they block ultraviolet (UV) rays.
Added sugar is fine in small amounts, but too much is linked to weight gain, acne, and a higher risk of type 2 diabetes and heart disease. Dietary guidelines suggest keeping added sugar under 10% of ...
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