Out in the open air on a beautiful summer day, most people don鈥檛 realize that they鈥檙e bathing in the world's most common carcinogen 鈥� the sun's rays. Ultra violet (UV) rays to be exact. Let鈥檚 take a look at how UV rays affect your body, and the sorts of built-in chemical defense systems you're working with to stop any potential damage.
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