Sedentary: A significant risk factor of cancer

The World Health Organization has warned since 2004 about the need to tackle the most important risk factors for cancer. Among the changes in the current lifestyle which may favor this disease, the increased sedentary life occupies a prominent role.

Patients after being diagnosed with cancer stop exercising, increase the risk of complications and the tumor reappear again.

There have been many studies on the relationship between cancer and physical activity, the conclusions are:

Ø  The level of scientific evidence on the role of physical activity as prevention factor is high and convincing, in cases of breast and colorectal cancer.
Ø  In cases of prostate cancer the level of scientific evidence is likely, and lung and endometrial only possible.
Ø  The beneficial effects of exercise in cancer prevention are dependent upon the total amount of exercise performed (hours and intensity). Thus, higher levels of physical activity, measured in hours practiced weekly, are associated with a lower incidence of certain cancers (breast, colon and prostate).
Ø  In previously treated patients, maintaining physical activity reduces the risk of recurrence and mortality.
Ø  In breast cancer patients undergoing hormone therapy with aromatase inhibitors practice of physical exercise it is essential.