Pregnant doctors are less likely than other women to deliver their babies via C-section, recent research suggests. Economists say that may be because the physician patients feel more empowered to question the obstetrician. iStockphoto.com hide caption

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The underlying biology of age-related memory glitches — in old mice and old people — is different from what happens with Alzheimer's, recent research suggests. Anthony Bradshaw/iStockphoto.com hide caption

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Junior Seau sustained many concussions during his career and was suffering from a degenerative brain disease when he killed himself in May 2012. Otto Greule Jr./Getty Images hide caption

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Gubernatorial hopeful Dr. Donald Berwick speaks at the Massachusetts Democratic Party Platform Convention in July. Aram Boghosian/Boston Globe via Getty Images hide caption

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