Asthma is a medical condition of the chest associated with shortness of breath, wheezing, and coughing.
It is a constrictive pulmonary disease characterized by spasmodic contraction of the bronchi that makes breathing difficult.
Inflammation and narrowing of the small airways in the lungs cause asthma symptoms. It affects both children and adults.
The most common asthma triggers are allergies, air pollution and other airborne irritants.
