British scientists say there isn't enough evidence to prove the antiviral drug Tamiflu reduces the spread of flu.   The findings published Thursday in the journal BMJ question whether...

A new study gives a big boost to fixing a bad aortic valve, the heart's main gate, without open-heart surgery. Survival rates were better one year later for people who had a new valve placed...

A new class of experimental medicines can dramatically lower cholesterol, raising hopes of a fresh option for people who can't tolerate or don't get enough help from Lipitor and other statin...

A smartphone app for recovering alcoholics that includes a panic button and sounds an alert when they get too close to taverns helped keep some on the wagon, researchers who developed the tool...

The U.S. government's estimate of autism has moved up again to 1 in 68 U.S. children, a 30 percent increase in two years.   But health officials say the new number may not mean autism is...

Lots of apps claim they can help you fight jet lag. Now researchers say mathematical formulas suggest it's possible to adjust to new time zones a bit faster than previously thought, and they...

The U.S. government is taking a step to let friends or loved ones treat someone they suspect has overdosed on heroin or powerful painkillers called opioids, while they are waiting...

A simple test appears very good at ruling out heart attacks in people who go to emergency rooms with chest pain, a big public health issue and a huge worry for patients.   A large study in...

New research is boosting hopes that weight-loss surgery can put some patients' diabetes into remission for years and perhaps in some cases, for good.   Longer follow-up from a major...

Love can sometimes break a heart but marriage seems to do it a lot of good. A study of more than 3.5 million Americans finds that married people are less likely than singles, divorced or widowed folks...