Research shows that chemicals in green tea may prevent the development of prostate cancer.
According to Chinese medicine, prostate cancer is due to excess dampness, among other things. Green tea reduces dampness, so it can help prevent (as well as treat) cancer.
A more technical explanation for the interested reader: According to the Law of 5 elements, dampness belongs to Earth. Green tea belongs to Wood, which diminishes Earth. Prostate cancer also involves excess Fire; green tea is also cooling, so it reduces Fire.
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