PHYSICAL ACTIVITY AND CANCER

There is robust evidence suggesting that higher levels of physical activity are associated with a reduced risk of developing several types of cancer, including bladder, breast, colon, endometrial, esophageal, kidney, and stomach cancers. Engaging in physical activity can encompass a wide range of actions, from walking and running to dancing, biking, swimming, household chores, and sports. Meanwhile, sedentary behavior—characterized by sitting or reclining for extended periods, such as during office work or while watching television—remains a significant risk factor for chronic diseases and may be linked to certain cancers.

The beneficial effects of physical activity on cancer prevention are numerous. It helps lower levels of sex hormones like estrogen and growth factors associated with cancer progression, prevents high insulin levels, reduces inflammation, improves immune function, alters bile acid metabolism, and decreases gastrointestinal exposure to potential carcinogens. Furthermore, regular physical activity aids in preventing obesity, a known risk factor for various cancers.

To reap substantial health benefits and reduce the risk of chronic diseases, including cancer, the U.S. Department of Health and Human Services recommends adults engage in 150 to 300 minutes of moderate-intensity aerobic activity or 75 to 150 minutes of vigorous-intensity aerobic activity weekly. Strength training exercises should be performed at least twice a week, and activities that enhance balance and flexibility, such as yoga or Pilates, should also be incorporated.

Exercise is generally safe for cancer survivors, and maintaining physical activity can be beneficial. While more research is needed to confirm the extent of these benefits, integrating regular exercise into daily life can play a vital role in reducing cancer risk and enhancing overall well-being.