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Kids may be safest in cars when grandma or grandpa are driving instead of mom or dad, according to study results that even made the researchers do a double-take....

Falling may be an early sign of Alzheimer's, according to new research. Older people whose brain scans showed signs of amyloid — an early indicator of Alzheimer's disease — but who were otherwise healthy, had twice the risk of falls as people without brain amyloid, found a study being presented Sunday at the Alzheimer's Association's annual International Conference in Paris.

Alpha males may hold power and attract females, but a study of baboon troops in Kenya shows they also have very high levels of stress.

Two new studies found that daily pills prevented infection with the AIDS virus in heterosexual men and women in Africa, bringing new hope for someday offering a medical shield against HIV infection....

The results run counter to the idea that more supermarkets can curb obesity in low-income neighborhoods. Better access to supermarkets — long touted as a way to curb obesity in low-income neighborhoods — doesn't improve people's diets, according to new research.

A quarter of smartphone users rely mainly on their phones for internet access, according to a new study from the Pew Internet and American Life Project, that also found that more than one-third of all American adults have taken the smartphone plunge. In the center’s first stand-alone examination of smartphone use, it found that 33 percent of users said their phones were smartphones and 39 percent said their phones operate a smartphone platform such as iOS, Android, BlackBerry, Windows Phone or Palm.

A new U.S.D.A. study says cutting the costs of healthy food has a significant impact on kids' weights. Let's stop subsidizing corn syrup.

A new study suggests that an ingredient in red wine may stave off the effects of not exercising.

Two new studies have linked drinking diet soda to poorer health compared with those who don't drink the beverage.

Two new studies offer good news for newborns and children about two different vaccinations -- flu vaccine for pregnant women, and rotavirus vaccine for infants.