Which food prevents cancer?

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More than two dozen studies have shown that women who exercise have a 30 percent to 40 percent lower risk of breast cancer than their sedentary peers. ... Since exercise lowers blood estrogen, it helps lower a woman's breast-cancer risk.xercise also reduces other cancer-growthfactors such as insulin.

http://www.mytodayhealthtips.com/10-habits-to-reduce-the-risk-of-ca...