A shopper at a branch of South African retailer Pick n Pay in Johannesburg. Health insurer Discovery offers rebates on health food at the chain to its members who enroll in a health promotion program. SIPHIWE SIBEKO/Reuters /Landov hide caption

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Most people polled in a new survey said government programs to make fresh fruits and vegetables more affordable sound like a great idea. iStockphoto.com hide caption

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Extra weight is no defense against aging, says a demographer who argues that the apparent benefits from being overweight are a mirage. iStockphoto.com hide caption

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Adults who upped their intake of sugary foods or drank sugar-sweetened drinks gained about a pound a year, a study found. Umberto Salvagnin/Flickr hide caption

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An analysis of many studies finds a small spare tire may be associated with longer life. But skeptics say that conclusion is rubbish. iStockphoto.com hide caption

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Many Americans aren't getting the recommended seven to nine hours per night. Franck Camhi/iStockphoto.com hide caption

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Doctors may recommend that obese patients use weight-loss drugs to trick their hunger pangs. iStockphoto.com hide caption

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