Stock market slides may hurt more than your savings. New research suggests they might prompt heart attacks.

The Food and Drug Administration is adding its strongest warning to the label for Plavix, cautioning that some patients do not respond to the blockbuster blood thinner.

Too much cancer screening, too many heart tests, too many cesarean sections. A spate of recent reports suggest that too many Americans - maybe even President Barack Obama - are being overtreated.

Madison County has the highest per capita birth rate in the state of Idaho. With the latest expansion, the hospital brings its total number of beds to 65.

A troublingly high number of U.S. patients who are given angiograms to check for heart disease turn out not to have a significant problem, according to the latest study to suggest Americans get an excess of medical tests.

Men are more likely than women to be interested in sex, have sex and enjoy sex, according to new scientific research, which also found people who stay active and healthy enjoy longer sex lives.

Children inherit about 30 mutated genes from each parent, fewer than had been thought, but enough in at least one case to pass on inherited illnesses, according to a first detailed look at the blueprint for human life in a family.

Too many pregnant women who want to avoid a repeat cesarean delivery are being denied the chance, concludes a government panel.

The Food and Drug Administration said Wednesday a nerve stimulating implant from Medtronic failed to significantly reduce seizures in epilepsy patients.

Pregnancy-related deaths appear to have risen nationwide over the past decade, nearly tripling in the state with the most careful count - California.

The United Nations says mother-to-child HIV transmission can be eliminated by 2015 if health programs receive increased investments as planned.

The virus that causes AIDS can hide in the bone marrow, avoiding drugs and later awakening to cause illness, according to new research that could point the way toward better treatments for the disease.

Germs in the gut may help drive appetite, says new research into the link between obesity and bacteria.

Diet not working? Blame your genes. That's the pitch behind a new test that claims to show whether people will do better on a low-fat or a low-carb weight loss plan.