Study ties childhood attention deficit hyperactivity disorder to adult obesity

Having childhood attention deficit hyperactivity disorder could lead to a life of obesity, even if ADHD symptoms disappear in adulthood, a new study shows.

Astronauts fix coolant leak in 51/2-hour walk

LOS ANGELES - Astronauts replaced a leaking component on the International Space Station after a five-hour, 30-minute spacewalk, NASA reported.

Fainting may be in the genes

Fainting may be in our genes, which may explain why keeling over at the sight of blood tends to run in families, according to researchers in Australia.

Social isolation tied to risk of premature death, study says

People who are socially isolated are more likely to die prematurely, regardless of underlying health problems, according to a study of the elderly British population.

Volcanic cataclysm let dinosaurs take over, study finds

LOS ANGELES - More than 200 million years ago, toothy, crocodilelike creatures stalked a hot, dry megacontinent while squid-like mollusks with spiral shells drifted in the surrounding ocean.

Study: 'Likes' may reveal more than you think

Attention Facebook users: Do you "like" Mozart, science, "The Colbert Report" and curly fries? Chances are, you've got a high IQ. Have you clicked the thumbs-up icon for Tyler Perry, Harley Davidson and Lady Antebellum? Perhaps you're not quite as cerebral.