Chest health - Information on Asthma - Asthma Overview - eMedicine Health

Information on Asthma - Asthma Overview - eMedicine Health
Information on asthma, a disease that affects the breathing passages of the lungs; symptoms of asthma and causes of asthma. Asthma is common in the United States, where more than 17 million people are affected; a third of these are children. ... Asthma. Choose from the articles below to learn about the types of asthma and related conditions. ...