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Your running excuse, busted


By Carey Rossi for 


The reason you don’t run has been echoed often: you’re worried about your knees and hips. Well, you’re going to have to find a different excuse, says Paul Williams, PhD, a staff scientist at Lawrence Berkeley Laboratory at the University of California in Berkley. His research found that strenuous sports such as running and walking actually strengthen your joints and don’t make hip and knee replacements the price of living an active lifestyle.

Dr. Williams looked at outcomes of these activities that are supposed to have negative impacts: osteoarthritis and hip replacement. “To my surprise, we found, rather than what I expected, that both osteoarthritis and hip replacements went down the more you ran,” he says. Walking had the same

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