Don't say "mental retardation" — the new term is "intellectual disability." No more diagnoses of Asperger's syndrome — call it a mild version of autism instead. And while "behavioral addictions" will be new to doctors' dictionaries, "Internet addiction" didn't make the cut.

Gallbladder surgery is usually a very safe operation, but a powerful congressman's death is a reminder of the known risks.

A woman's chance of having a child with autism increase substantially as she ages, but the risk may be less for older dads than previously suggested, a new study analyzing more than 5 million births found.

High rates of the most effective type of malaria-fighting drugs sold in three African countries are poor quality — including nearly half the pills sampled in Senegal — raising fears of increased drug resistance that could wipe out the last weapon left to battle a disease that kills 1 million peopleeach year, according to a U.

The federal government advises throwing most unused or expired medications into the trash instead of down the drain, but they can end up in the water anyway, a study from Maine suggests.

China declared a new food-safety campaign Wednesday after contaminated milk products from an earlier scandal showed up repackaged in several places around the country, exposing weaknesses in the country's promise to stop such problems from happening again.

If the U.S. swine flu epidemic isn't over, it certainly looks as if it's on its last legs. While federal health officials are not ready to declare the threat has passed and the outbreak has run its course, they did report Friday that for the fourth week in a row, no states had widespread flu activiy.

The death of the father of Olympic skater Nancy Kerrigan was ruled a homicide Tuesday when an autopsy showed he died of a heart rhythm problem after a fight with his son in which he suffered a neck injury so severe it damaged his windpipe.

A Massachusetts company has agreed to pay a $200,000 penalty to settle allegations it violated U.S. law when it imported Thomas and Friends, Curious George and Winnie the Pooh toys with high levels of lead.

Expectant mothers are getting a new tool to help keep themselves and their babies healthy: pregnancy tips sent directly to their cell phones.