The dangers of sunlight.The Sun consists of radiation at the eye can't see. Are called ultraviolet, or UV, which most people will rarely know that UV light, even slightly, in the evenings, sunny, it can make the collagen (tissue cells of the skin), macular degeneration has produced free radicals the body fight an irritation, such as sunlight, dust and various pollution for a long time, which, if left on the skin free radicals damage cells surrounding it, this may cause skin cancer.
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