What is the definition or description of: asthma?

Chronic inflammation: Asthma is a chronic inflammatory disorder of the air passages that leads to reversible airflow obstruction manifesting as cough, wheezing, chest tightness or shortness of breath. Symptoms can flare up with specific triggers but usually respond to anti-inflammatory and bronchodilator medications. Diagnosis of asthma is a clinical one based on a recurring pattern of wheezing episodes and exam findings.

Chronic Lung Disease: Asthma is a disease of the lungs caused by chronic inflammation of the airways most often caused by allergies. This inflammation results in airway swelling and hyperactivity leading to difficulty breathing, shortness of breath, dry cough, etc. MIT is a diagnosis made by combining clinical suspicion and spirometry data.