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Higher physical activity associated with reduced risk of breast cancer

Women with higher levels of physical activity may have a reduced risk of breast cancer after menopause, according to a report in the December 11/25 issue of Archives of Internal Medicine, one of the JAMA/Archives journals. The association appears to be stronger for estrogen receptor positive/progesterone receptor negative tumors (which are typically more aggressive) than for other types of breast cancer tumors.

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