4/21/2011

Data from the Nurses' Health Study found women who smoked, had a high weight, had low activity levels or consumed red or processed meat daily had a fourfold increased risk of colon cancer by age 70. Those with a family history of colon or rectal cancer had a 55% increased risk, while women who took post-menopausal hormones were 23% less likely and those with an active lifestyle were 49% less likely to develop the cancer, the study in the American Journal of Epidemiology found.

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