Asthma is a lung disease that inflames and narrows the airways. Find out about the effects and triggers of asthma, and how to control it.
Asthma is a chronic disease, like diabetes and high blood pressure, that causes recurring periods of wheezing, coughing, chest tightness and shortness of breath. As it is chronic, once you develop asthma, you are likely to have it for your lifetime. Even when you are feeling fine, your asthma is still there and can flare up at any time. A chronic condition like asthma often requires daily attention.