“We all know by now that exercise is good for your heart, but what exactly is it about exertion that gets your ticker pumping? For the past couple of years, a group has been working with the Harvard athletics department to examine how…”
http://www.boston.com/video/viral_page/?/services/player/bcpid21962023001&bctid=48414992001
Saturday, November 7, 2009
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