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    Thursday, December 14, 2006

    Finally, The Excuse We All Wanted

    "The real sweet spot, as you would expect there to be in any biologic system, is around an hour a day," said Dr. Mehmet Oz, a surgeon at Columbia University and co-author of "You: The Owner's Manual." "After that, it's hard to show a great benefit."

    There are no widely accepted recommendations for when adults should lay off exercising partly because health officials are worried about Americans being too sedentary, not too active. But it's also difficult to say with precision when healthy exercise becomes unhealthy among a population that includes extremes from triathletes to couch potatoes.

    "It's so idiosyncratic, that's the tough thing about it," said Carl Foster, a professor of exercise and sports science at the University of Wisconsin-La Crosse.

    William Haskell, professor at the Stanford School of Medicine, says that in general the risk of harm begins to outweigh the benefits for adults after more than an hour a day. Above an hour, it's questionable whether you're going to get much more from it, he said.


    That makes sense in my worldview.  Moderation, baby.



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