The classic environmental triggers for asthma are clearly known, but Harvard researchers have added new twist: family violence.

Women in a study who had experience domestic violence in the past year suffered a 37-percent higher risk of asthma than women who didn’t live in such househol...

For nearly nine million American children, are there peanuts in that birthday treat from a friend? Will running trigger asthma? Could a bee sting cause anaphylactic shock?