7/22/2010 9:51 am
By Gina Kolata, New York Times
Exercise scientists say they have stumbled on an amazing discovery. Athletes can improve their performance in intense bouts of exercise, lastin... 
7/22/2010 9:27 am
By Kelli Miller Stacy, WebMD Feature
Are you too sick, tired, or sore to work out -- or are you slacking off?
Exercise does the body good, but it's not always a good idea...
7/22/2010 9:10 am
By Stephanie Watson, WebMD Feature
You work hard all week, so when the weekend finally rolls around you want to play just as hard. There's nothing like a few rounds of golf, ...
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