Read more about asthma

Asthma is a chronic pulmonary condition in which the airways become blocked or narrowed when stimulated by allergens or other environmental triggers.

Patients with asthma can experience difficulty breathing, coughing, wheezing, and shortness of breath. Asthma is a chronic condition, and can be induced by allergies, exercise, and other sources.

Asthma can range from mild to severe, and is on the rise in the United States. Asthma is one of the fastest growing medical problems in all developed countries. During the 1950s and 1960s, the medical community did not produce dependable documentation regarding the incidence rate of asthma.