Antioxidants found in green tea may help repair DNA damage caused by sun exposure, according to a recent study in mice. Exposure to ultraviolet (UV) radiation can damage DNA and, in turn, trigger suppression of the immune system—a risk factor for developing skin cancer. The study, funded in part by NCCAM and published in the journal Cancer Prevention Research, examined the effects of polyphenols from the leaves of the green tea plant, which are thought to fight free radicals (highly unstable molecules that can damage cells) and have anticarcinogenic activity.
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