Q. Can a regular exercise program reduce the risk of getting cancer?

A. The short answer is yes, for several cancers. The American Cancer Society (ACS) states that regular physical activity can help reduce the risk of getting breast, colon, ovarian, and pancreatic cancer.
Regular exercise may help prevent cancer by reducing excess body weight, lowering blood insulin levels (also helping prevent type 2 diabetes), and decreasing food transit time in the gut. It may also directly improve the body’s immune system which is critical in fighting off cancer.
Three recent studies listed by the ACS showed that a high level of physical activity was linked to a lower risk of cancer. In China, women who have high levels of physical activity cut their risk of ovarian cancer in half compared to more sedentary women. Protective activities include: “vigorous work” leading to sweating, brisk walking, jogging, or bike riding, and strenuous sports...
 
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