U.S. Rep. Paul Ryan, R-Wis., right, hears from a constituent during a "listening session" Tuesday at Gateway Technical College in Kenosha, Wis. Ryan's plan to fundamentally restructure Medicare and cut social safety net programs has proved to be a tough sell to many Republican voters the last few weeks. Jeffrey Phelps/AP hide caption

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Medicare's Math Problem: Taxes - Benefits = Trouble

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Your Health Podcast: Kids' Nutrition And A Mission To Get Moving

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Medicine, Murder And The History of Transfusion

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Sleep-Deprived Rats Take 'Brain Naps'

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'Annoying' Book Probes The Science Of Irritations

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Most doctors surveyed said they think visits to emergency rooms will increase as the new health law is implemented. iStockphoto.com hide caption

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Jamie Oliver during a scene filmed in Los Angeles from the second season of "Jamie Oliver's Food Revolution" on ABC. Mitch Haddad/AP hide caption

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