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See Latest ArticlesMore Clues on How Exercise Can Protect Against Diseases of Aging
U.S. News & World Report, 12/02/09
Exercise can't stop the years from ticking by, but it certainly appears to protect against some of the diseases of aging. The latest evidence: a new study showing that the white blood cells of endurance athletes had longer telomeres, the tiny, protective units of DNA that cap the end of chromosomes like plastic shoestring tips and grow shorter as cells age. The study, published online by Circulation, may explain how exercise can protect against two big killers: heart disease and cancer. "Younger" white blood cells may be able to more efficiently clear out both abnormal cells that may progress to cancer and the plaques implicated in heart disease.
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