Exercise Prevents Cancer
Exercise is connected with a lower occurrence of colon cancer in men and women, and of breast cancer in women. In the November 2003 issue of Medicine & Science in Sports & Exercise, it has been reported that moderate to vigorous physical activity has a greater protective effect against cancer than lower intensity physical activity. It seems that about 30–60 minutes of moderate to vigorous exercise per day is needed for risk reduction. In addition, physically active women have a 20%–40% reduction in relative risk for breast cancer compared with their inactive counterparts.