Just try sugar-coating this: The World Health Organization says your daily sugar intake should be just 5 percent of your total calories — half of what the agency previously recommended,...

Most people who abuse addictive prescription painkillers get them for free from friends or relatives, while drug dealers are a relatively uncommon source for those at highest risk for deadly...

Jazz musicians are famous for their musical conversations — one improvises a few bars and another plays an answer. Now research shows some of the brain's language regions enable that musical...

U.S. obstetricians are being told to show more patience in the delivery room.   New guidelines say doctors should give otherwise healthy women more time to deliver their babies vaginally...

Scientists have modified genes in the blood cells of HIV patients to help them resist the AIDS virus, and say the treatment seems safe and promising. The results give hope that this approach might one...

Toddler obesity shrank sharply in America in the past decade, a new study suggests. While promising, it's not proof that the nation has turned a corner in the battle against childhood obesity,...

A Swedish doctor says four women who received transplanted wombs have had embryos transferred into them in an attempt to get pregnant.   He would not say on Monday whether any of the women...

Older fathers may face higher risks than previously thought for having children with psychiatric problems, including bipolar disorder, autism and attention deficits, according to the largest study to...

People who take Januvia, Byetta or certain other widely prescribed medicines for diabetes can breathe a little easier — U.S. and European regulators have found no compelling evidence of a link...

Britain is inviting the public to weigh in on draft rules allowing scientists to create embryos using DNA from three people — a man and two women — to prevent mothers from passing on...