Active lifestyle aids kidneys, colon cancer survivors

Fitness does it again.

"You may know this already, but here's more proof: Leading a physically active life yields multiple health dividends, according to four studies published today in the Archives of Internal Medicine.

One study suggests that physical activity may help keep the kidneys of older adults in tip top shape, while another hints that a combination of a healthy waist size, not smoking, and aerobic fitness protects against heart disease and premature death.

A third study provides some of the first evidence that colon cancer patients who are physical active lower their odds of having their cancer recur."

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(Even if you do not have cancer.)