Vigorous Exercise Associated With Decreased Breast Cancer Risk (But Only In Older Women)

Researchers writing in BMC Cancer say that post-menopausal women who engage in moderate or vigorous exercise have reduced risk of breast cancer. Over 110,000 post menopausal women were asked to rate their level of physical activity at ages 15-18, 19-29, 35-39, and in the past 10 years. It was found, over 6.6 years of follow up, that women who engaged in more than 7 hours per week of moderate-to-vigorous exercise for the last ten years were 16% less likely to develop breast cancer than those who were inactive. However, no link was observed between breast cancer risk and physical activity in women who were active at a younger age. read more

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