Our take: According to a new study from the University of North Carolina at Chapel Hill, women who exercise 10 to 19 hours a week during their reproductive years or following menopause reduce their risk of breast cancer by 30%, regardless of the intensity.
Women may significantly reduce their risk for breast cancer by exercising a couple hours each day, a new study finds. The study found that even mild physical activity like walking reduced risk for the disease that strikes 227,000 new women each year.
For the study, researchers at the University of North Carolina at Chapel Hill compared 1,500 women with breast cancer to more than 1,550 women without breast cancer who were part of the ongoing "Long Island Breast Cancer Study Project" that looked at environmental causes of the disease.
Read more about Breast cancer risk reduced 30 percent in women who exercise on CBSnews.com.
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