The fallout from Cold War bomb tests is shedding light on why the Achilles tendon heals so poorly after injuries. By looking at carbon-14, scientists have found that tendon tissue in people who were alive during the tests hasn't changed much since they were youngsters.
After going deaf at the age of 30, writer Katherine Bouton's entire life changed. In her new book, "Shouting Won't Help," Bouton shares how she came to terms with hearing loss, and why more attention needs to be paid to a condition that affects nearly 50 million Americans.
Pharmaceutical companies have been singing Virginia's praises for it's pioneering work in clinical trials, but some wonder whether it's not a PR stunt to court favor for proposed rules changes on generic drugs.
Exercise buffs who take dietary supplements with the ingredient know as DMAA say the stimulant gives them a boost of energy. But some researchers and the Food and Drug Administration are worried that these products could be dangerous.
The notion that being a little overweight could help people in old age is being challenged. Some of the studies in support of the so-called obesity paradox excluded people who lived in institutions, like nursing homes, or were too sick to participate, a critic says.
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