After a column of smoke billowed from the deadly crash of a UPS cargo plane at Louisville's airport, here's what we know ...

PASADENA, Calif. Allergy and asthma sufferer Scott Adams went to school Monday morning feeling pretty lousy then his symptoms got worse. "I am sneezing and coughing all the time and I just feel awful, ...

"Many homes are filled with irritants, and if there's a high enough count of an irritant, you'll react," says Christopher Randolph, MD, an allergy expert at /topics/Yale_University" ...

Environmental officials are warning thousands of people in Central Oregon of symptoms such as burning eyes and runny noses as wildfire smoke causes unhealthy air quality this weekend. Myriad air ...

You seldom expect homesickness to hit you how and when it does. The desperate yearning for home doesn’t always feel like a roundhouse kick to your abdomen — the kind that sends you reeling, doubled ...