Why sitting may be hazardous to your health
Every time we think we have a handle on all the things that are bad for us, another one is added to the list. A few years ago, researchers put inactivity on the roster of major health risks. "Everybody knows smoking is bad for your health. But what isn't common knowledge is that physical inactivity is as powerful a risk factor as smoking," says Dr. I-Min Lee, professor of medicine at Harvard Medical School. Dr. Lee, who has studied the effects of exercise for more than a decade, was one of the first to identify inactivity as a health hazard.
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