Original sentence: Asthma is a disease of the respiratory system in which the airways constrict, become inflamed, and are lined with excessive amounts of mucus, often in response to one or more "triggers," such as exposure to an environmental stimulant (or allergen), cold air, exercise, or emotional stress
Edited sentence: Asthma is a disability, respiratory condition & a form of bronchitis.Asthma is the trate in which the airways constrict (They also often become inflamed, and have excessive amounts of mucus) in response to one or more "triggers" such as exposure to an environmental stimulant (or allergen), cold air, exercise, or emotional stress