There’s no question that exercise is good for our physical and mental health, says pharmacist and women’s health expert Marla Ahlgrimm. Experts also tell us that exercise is good for treating many conditions, such as obesity and arthritis, to name a few. Now we can add breast cancer to the list. Scientists have discovered that exercise alters the way estrogen is metabolized. Because estrogen drives most breast cancers, research suggests that routine physical activity may lower the risk of breast cancer.
Here’s how it works. During exercise, more blood gets pumped to the liver where your body detoxifies many things, including excess estrogen. This is an important step because too much estrogen tends to cause breast cells to divide too quickly, says Marla Ahlgrimm. When breast cells are dividing too fast, they make more genetic mistakes which can lead to cancer.