Physical Activity and Breast Cancer



We have heard for years that physical activity is important for your health.  Many people exercise to prevent heart disease. But did you know that exercise can also play a key role in preventing cancer – especially breast cancer?

Over a couple of dozen studies have shown that women who exercise, have a 30 to 40 percent lower risk of breast cancer than their less active counterparts. Exercise may lower cancer risk by helping control weight, controlling release of hormones like estrogen, and strengthen the immune system. Additionally, exercise can boost quality of life during cancer treatment.

High estrogen levels in blood can lead to an increased risk for breast cancer. Exercise lowers blood estrogen, leading to a reduced breast-cancer risk. Exercise also reduces other cancer-growth factors such as insulin.

Physical activity has been associated with a reduced risk of breast cancer in both premenopausal and postmenopausal women. However, this is more pronounced in postmenopausal women, because after menopause the estrogen is produced by fat cells. Women who exercise have less fat and therefore produce less estrogen.

Here are some other ways to be more active:
·         Use stairs instead of the elevator.
·         Exercise in groups –with your family or friends.
·         Vary your type of exercise to avoid boredom.
·         As much as possible, walk towards your destination.
·         Club your exercise regime with a healthy diet.

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