Physical activity associated with reduced risk for obesity in genetically predisposed

Individuals who have a genetic mutation associated with high body mass index (BMI) may be able to offset their increased risk for obesity through physical activity, according to a report in the September 8 issue of Archives of Internal Medicine, one of the JAMA/Archives journals.
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Exercise could be the heart’s fountain of youth

Absence may make the heart grow fonder, but endurance exercise seems to make it younger. According to a study conducted at Washington University School of Medicine in St. Louis, older people who did endurance exercise training for about a year ended up with metabolically much younger hearts. The researchers also showed that by one metabolic measure, women benefited more than men from the training.
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Exercise in a pill

Trying to reap the health benefits of exercise? Forget treadmills and spin classes, researchers at the Salk Institute for Biological Studies may have found a way around the sweat and pain. They identified two signaling pathways that are activated in response to exercise and converge to dramatically increase endurance.


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Combining exercise with hormone could prevent weight gain

Once heralded as a promising obesity treatment, the hormone leptin lost its fat-fighting luster when scientists discovered overweight patients were resistant to its effects. But pairing leptin with just a minor amount of exercise seems to revive the hormone’s ability to fight fat again, University of Florida researchers recently discovered.

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