By John Solomon
How the government's punishing of the exposure of official wrongdoing can linger for years
More than 1 million Americans wind up back in the hospital only weeks after they left for reasons that could have been prevented _ a revolving door that for years has seemed impossible to slow.
This is your brain on sugar _ for real. Scientists have used imaging tests to show for the first time that fructose, a sugar that saturates the American diet, can trigger brain changes that may lead to overeating.
Mammograms have done surprisingly little to catch deadly breast cancers before they spread, a big U.S. study finds. At the same time, more than a million women have been treated for cancers that never would have threatened their lives, researchers estimate.
New research could mean millions of older women can skip frequent screening tests for osteoporosis: If an initial bone scan shows no big problems, many can safely wait 15 years to have another one, the study suggests.
Karen Butler has a British-sounding accent, but she's never been to Europe. She woke up from dental surgery one day talking funny. A year and a half later her "foreign" accent remains, and her story has traveled around the world.
