Maintaining a healthy weight may lower the risk of various types of cancer, including cancer of the breast, prostate, lung, colon and kidney. Physical activity counts, too. In addition to helping you control your weight, physical activity on its own may lower the risk of breast cancer and colon cancer.

As a general goal, include at least 30 minutes of physical activity in your daily routine — and if you can do more, even better. Try a fitness class, rediscover a favorite sport or meet a friend for daily brisk walks.
Source: Mayo Clinic