Better cancer drugs that zero in on a tumor with fewer side effects. A universal flu vaccine that could fight every strain of influenza without needing a yearly shot.   Research into...

US health officials say synthetic marijuana has been linked to kidney damage in some teens and young adults.   Sixteen people who smoked synthetic marijuana were hospitalized with kidney...

What happens to fish that swim in waters tainted by traces of drugs that people take? When it's an anti-anxiety drug, they become hyper, anti-social and aggressive, a Swedish study...

Scientists wondering why some children and not others survived one of China's worst food safety scandals have uncovered a suspect: germs that live in the gut.   In 2008, at least six...

Shootings and other traumatic events involving children are not rare events, but there's a startling lack of scientific evidence on the best ways to help young survivors and witnesses heal, a...

Commonly used steroid shots may worsen tennis elbow in the long run and increase chances that the painful condition will reappear, a small study found.   By contrast, patients who got dummy...

Researchers have discovered the first U.S. cases of whooping cough caused by a germ that may be resistant to the vaccine.   Health officials are looking into whether cases like the dozen...

The world's most advanced tuberculosis vaccine failed to protect babies against the infectious disease, according to a new study in South Africa.   The vaccine, MVA85A, was designed to...

One in 12 stroke survivors thought about suicide or that they would be better off dead, a new U.S. survey reveals. That's more than those with other health problems such as heart attacks or...

Fact or fiction? Sex burns a lot of calories. Snacking or skipping breakfast is bad. School physical education classes make a big difference in kids' weight.   All are myths or at least...