Federal health officials recommend 1,000 milligrams of calcium per day for people younger than 50, but some are overdoing it. iStockphoto.com hide caption

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When it comes to learning how to drive, your teen is probably as harried as you are. Research shows that scare tactics meant to instill caution, though, are less effective than kind words. iStockphoto.com hide caption

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Young activists distribute condoms at an AIDS awareness event in Ashbury Park, N.J. Charles Sykes/AP hide caption

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A promising crop of new migraine treatments could alleviate the suffering of millions of Americans. iStockphoto.com hide caption

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Contact with animals and dirty environments may be one reason farm kids are less likely to get allergies, researchers say. iStockphoto.com hide caption

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Some fear that with rising medical costs and an aging population, the country's nursing staff will be stretched too thin. iStockphoto.com hide caption

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Douglas Harlow Brown, 80, of East Lansing, Mich., watches birds inside a medical rehab facility. Brittney Lohmiller for NPR hide caption

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