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  1. Gene Tweak Makes for Mighty Mice

    Nov.1, 2007 -- Scientists at Case Western Reserve University have genetically engineered mice that outrun, outlive, and out-eat ordinary mice while staying lean, light, and fertile well into old age. Chalk it up to a change in a single gene. That genetic tweak boosted levels of an enzyme called PEPC

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  2. Stretching Won't Prevent Sore Muscles

    Oct. 17, 2007 -- Stretching before or after vigorous exercise won't spare you the agony of sore muscles, according to a new review. Researchers from the University of Sydney in Australia arrived at the conclusion after reviewing the results of 10 published studies. The review "showed very clear resu

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  3. Running Shoes: Don't Pay More

    Oct. 10, 2007 -- Running-shoe buyers, beware! Whichever brand of running shoe you favor, the brand's most costly model is no better -- and may be worse -- than its lower-priced shoes. The warning comes from studies by Rami J. Abboud, PhD, director of the Institute of Motion Analysis and Research at

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  4. CDC: Disabled Less Active Than Others

    Oct. 4, 2007 -- Most U.S. adults with disabilities don't get enough physical activity, according to new CDC data. The CDC today reported that almost 38% of adults with disabilities meet minimum recommendations for physical activity, compared with nearly half of other adults. Also, a quarter of disab

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  5. Proteins Increase Muscle Mass in Mice

    Aug. 28, 2007 -- The secret to increasing muscle mass may not just be a matter of sweating it out in the gym. Gaining muscle mass may also be related to two proteins -- myostatin and follistatin -- according to new work by Johns Hopkins University scientist Se-Jin Lee, MD, PhD. Lee studied genetical

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  6. Milk: The Best Muscle-Builder?

    Aug. 8, 2007 -- Drink milk after your weight training workouts, and you may gain more muscle and lose more body fat than if you drink a soy or carbohydrate drink, according to the results of a new study. Researchers compared the effects of drinking nonfat milk, a soy protein drink, or a carbohydrate

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  7. Move It! New Exercise Guidelines

    Aug. 8, 2007 -- New exercise guidelines make it crystal clear: To be healthy, you gotta move. That's more than a Rolling Stones lyric -- it's a minimum requirement for health, says an expert panel from the American Heart Association and the American College of Sports Medicine (ACSM). In 1995, the CD

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  8. Football Leads Youth Sports Injuries

    July 26, 2007 -- Two new studies highlight the risk of youth sports injuries that student athletes may experience on the playing field. One of the new studies focuses on football injuries in high school and college football players. The other study tracks traumatic head injuries in various sports. S

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  9. Fitness Plan: Rest to Burn More Fat

    July 20, 2007 -- Looking to burn fat through exercise? Resting during your workout may help, Japanese researchers report. Here's the fat-burning fitness plan they tested: Exercise for 30 minutes, take a 20 minute break, and finish with another 30 minutes of exercise. That revs up fat metabolism even

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  10. Nintendo Game Sparks Acute ‘Wiitis’

    June 6, 2007 -- Spending too much time playing simulated sports with video games may lead to real pain and sore muscles, researchers say. A letter in The New England Journal of Medicine details the first documented case of acute “Wiiitis” caused by extended play on the Nintendo Wii video game system

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