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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.

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.

When you live out in the middle of nowhere, you can feel like you're in the Internet slow lane because broadband just isn't available. Residents in rural Lancashire in England created their own high-speed Internet connection because they felt no major supplier would do it for them.

"We should think of doctors the same way we think of shirts," an economist says. "If we can get doctors at a lower cost from elsewhere in the world then we could save enormous amounts of money."

The engine room fire, power outage and ensuing problems aboard the stricken Carnival Triumph are far from the first major issues aboard a cruise ship. With bigger ships and more passengers than ever, the companies' safety concerns have been magnified.

Rep. Lamar Smith, a Republican from Texas, said the meteor that hit Russia and the asteroid that buzzed Earth are a "stark reminder of the need to invest in space science."

About the size of an office building, asteroid 2012 DA14 flew by Earth on Friday — coming within about 17,000 miles of the planet.

In New Jersey, thousands of discarded Christmas trees have dodged the wood chipper and hit the beach instead. They're being used to jump-start new dunes, but scientists warn that these man-made dunes could be less sturdy than dunes that form naturally.

A new study from the University of Melbourne claims that when you don't understand music, you don't even really hear it. And the more you hear it — and understand it — the more you might love it.

The fallout from Cold War bomb tests is shedding light on why the Achilles tendon heals so poorly after injuries.