For athletes and nonathletes alike, stretching to keep muscles limber may help prevent cramping later in life. Ian Stewart/AP hide caption

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Warding Off Muscle Cramps As We Age

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Despite public health messages about exercise and eating healthfully, many children are acquiring what used to be considered "adult diseases," like diabetes and high blood pressure. M. Spencer Green/AP hide caption

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U.S. Youth Likely To Face Greater Health Issues

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After being treated with shampoos and lotions containing insecticides for many years, some lice have become resistant to treatment. Dr. David Phillips/Corbis hide caption

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As Lice Grow Treatment-Resistant, Drug Could Help

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Report: Most Couples Living Together Marry

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As we age, our muscles deteriorate, and they don't repair as quickly as they used to. But the good news is that exercise and weightlifting can still make muscles stronger. Al Bello/Getty Images hide caption

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Why We Gain Weight As We Age

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Study: Mediterranean Diet May Lower Stroke Risk

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A weakening immune system makes inoculations both more important and less effective for the elderly. But scientists can "trick" the immune system into a younger response by adding a little extra oomph to vaccines for older people via chemicals called adjuvants or larger doses of the vaccines. Nick Ut/AP hide caption

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Adapting Vaccines For Our Aging Immune Systems

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Many schools have made an effort to get rid of unhealthy snacks and educate students about nutrition. Elementary students in Gilbert, Ariz., check out the fruit and vegetable choices as a part of a school lunch program called "A to Z Salad Bar." Tim Hacker/AP/East Valley Tribune hide caption

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Obesity Rates Level Off, But Health Concerns Remain

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For Some, Lasik Brings More Problems Than Solutions

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Health Experts Call For Heart Checkups For Kids

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FDA Investigates Radiation Overdose At Hospitals

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Report: Cancer Deaths Declining Since 1990s

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