Asthma is a chronic disease of the lungs, in which the lungs, especially the airways, are inflamed. Chronic means it won't go away. In this Divi, asthma is compared to the branches of a tree. In Asthma, the tree is diseased and therefore the branches may be constricted. Using this metaphor, the patient is explained what happens in the lungs in Asthma. In addition, the symptoms associated with Asthma are addressed.

In the Divi, the patient also reads about the different treatments available for Asthma. Various illustrations explain what inhaled medications can do in the airway. Finally, this Divi offers in-depth information about the respiratory system. A comprehensive animation explains how the respiratory system works.