TUESDAY, June 18 (HealthDay News) -- For stroke victims, 15 minutes can mean the difference between life and death, a new study finds.

TUESDAY, June 18 (HealthDay News) -- Pregnant women who live in smog-filled areas may be twice as likely to have children with autism, a new study suggests.

TUESDAY, June 18 (HealthDay News) -- People with a "hardening" of the abdominal aorta are at increased risk for heart attack and stroke, according to a new study.

TUESDAY, June 18 (HealthDay News) -- Concussion can lead to damage in the white matter of the brain that resembles abnormalities found in people in the early stages of Alzheimer's disease, a new study suggests.

TUESDAY, June 18 (HealthDay News) -- Children of women who drink moderate amounts of alcohol while pregnant don't appear to have any neurodevelopmental problems when it comes to balance, a new British study suggests.

MONDAY, June 17 (HealthDay News) -- Doctors should avoid ordering certain antibiotics for older patients who take cholesterol-lowering statin drugs, such as Lipitor, Canadian researchers say.

MONDAY, June 17 (HealthDay News) -- Elderly people may gain as much benefit from having implantable cardioverter defibrillators as younger people, according to a new study.

MONDAY, June 17 (HealthDay News) -- A new brain-imaging study could help explain why children with autism have difficulty with verbal communication: They may not get much pleasure from the human voice.

MONDAY, June 17 (HealthDay News) -- Black and Hispanic children with autism are markedly less likely than children from white families to receive specialty care for complications tied to the disorder, a new study finds.

FRIDAY, June 14 (HealthDay News) -- U.S. veterans with Gulf War illness complain of different types of symptoms, and researchers now think they know why: There may be two distinct forms of the illness, depending on which areas of the brain have atrophied.