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发帖数: 19 | 1 http://content.health.msn.com/content/article/13/1671_50421.htm
Antioxidants: Anti-Aging and Anti-Cancer
Much of the so-called aging of the skin is really a result of long-term
exposure to sun, tobacco smoke, and ozone. Environmental pollutants generate
highly damaging oxygen fragments, called free radicals, that erode skin much
like water rusts metal. Free radicals also damage collagen, the protein
latticework that maintains the skin's firmness and suppleness. The result is a
condition called p |
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