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Cold-weather benefit: Shivering may count as exercise

from LiveScience

Shivering triggers a response in muscles similar to that of exercise, new research suggests. The study, published in the journal Cell Metabolism, found that the muscles of shivering people triggers the release of a hormone that activates brown fat, a type of fat that burns energy to generate heat. If this same response could be activated by a drug, then scientists could one day develop medicines that could amp up energy expenditure, without requiring people to break a sweat — or a shiver, said study co-author Dr. Francesco Celi, an endocrinologist at Virginia Commonwealth University. more

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