As we all know, regular exercise is one of the best ways to improve your overall health. But today, I’m going to focus on just one benefit – one reason for women in particular to get moving every day: Regular exercise will cut your risk of breast cancer. Postmenopausal woman who get four hours of light to moderate activity per week – including bicycling and even walking – are 10 percent less likely to suffer from breast cancer than women who exercise less, according to the study in the journal Cancer Epidemiology, Biomarkers & Prevention. The key is to keep at it – because, not surprisingly, the study finds that the cancer-fighting benefits end the moment you stop exercising.