FOXNews.com: Could exercise be unhealthy for some people?

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Could exercise be unhealthy for some people? May 31st 2012, 13:36 New research suggests a radical idea – that in some cases, exercise could actually be bad for healthy people, the New York Times reported. Using data from six exercise studies involving 1,687 people, a well-known group of researchers found 10 percent of people actually got worse on at least one of three heart disease-related measures: blood pressure, insulin levels or HDL cholesterol.  Seven percent got worse on two of the measures. The researchers told the New York Times they didn't know why this happened, calling the results "bizarre." While some, such as Dr. Michael Lauer, director of the Division of Cardiovascular Sciences at the National Heart, Lung, and Blood Institute, applauded the study as "interesting and well-done," others worried the study may give people another excuse not to exercise. According to the New York Times, some critics also noted that these people who had an 'adverse' reaction to exercise did not appear to have higher rates of heart attacks or other bad outcomes.  Click for more from the New York Times.

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