20 Natural (and Amazingly Simple!) Immunity Boosters

Quick and easy ways to sick-proof your family this season (21 Photos)

Brenda Kearns on Jan 4, 2011 at 1:07PM

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20 Natural (and Amazingly Simple!) Immunity Boosters

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Stay-Well Strategy #4: Move Your Muscles

Walking, weight lifting, dancing -- pick a workout you love and do it for 30 minutes daily. You could cut your risk of catching a cold by 50 percent, say researchers at Appalachian State University in North Carolina. “Regular exercise stimulates the brain to produce human growth hormone,” explains Pamela Peeke, M.D., an assistant professor of medicine at the University of Maryland. “And this muscle-building chemical messenger simultaneously doubles your body’s production of germ-fighting antibodies to make your white blood cells more aggressive when they encounter invaders. Even chunks of exercise if you’re super-busy -- 15 minutes here, 15 minutes there -- can work like a charm!”

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