An asthma attack can come on suddenly or as a gradual worsening of symptoms. Here are the key signs you may be experiencing ...

Asthmatic kids exposed to radon tended to have more days with asthma symptom flare-ups, researchers found. They also suffered from increased airway inflammation as warm weather turned cold.

Learn what happens inside the body during an asthma attack and why treatments help prevent or reverse the effects.

An asthma attack is a sudden worsening of asthma symptoms caused by inflammation and a narrowing of the airways. This can make breathing difficult and, in severe cases, be life-threatening.

Gasoline prices in California went up as the national average stayed steady. California drivers are seeing an increase in fuel expenses. The price of a gallon of regular gas rose 41 cents from one ...