Asthma is a condition that people all over the world suffer from. It is a chronic condition that causes the breathing passages to shrink, causes shortness of breath and wheezing. Breathing becomes very difficult because mucus accumulates in the air passages. Sometimes the attacks may become very severe that it may require a visit to [...]

A group of chronic respiratory disorders that involve a persistent obstruction airflow.
Common Examples:

Bronchial Asthma - a chronic disease characterized by episodic attacks of respiratory distress resulting from constriction of the bronchi and bronchioles. An allergy formation.