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How Exercise Protects You From Cancer

If you've ever doubted the value of exercise when it comes to slashing your risk of cancer, two new studies demonstrate how the mechanisms that exercise triggers protect you from skin and bowel cancers.

In one study, merely offering mice the opportunity for exercise (a running wheel) and restricting their diet was enough to slow the growth of polyps, a precursor of bowel cancer, compared to those who didn't exercise at all and had many more polyps.

The latter study found mice allowed to exercise on a running wheel enhanced their ability to trigger ultraviolet B light (UVB) induced apoptosis (programmed cellular death) in their skin as well as any tumors.

The trick about exercise, however, is getting enough of it to make a difference which is why you should try viewing it like a drug that needs to be precisely prescribed to achieve its maximum benefit. If you need some help getting started, I urge you to review my beginner's exercise page. And, besides that, exercise can make you smarter too.

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EurekAlert May 12, 2006

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