Healthy lungs are essential to feeling good.
The lungs are the organs we use to breathe. They work by taking oxygen from the air we breathe in and then exchanging it for carbon dioxide, a deadly waste product made by the cells of the body. Once this exchange has taken place, we can then get rid of the carbon dioxide by breathing it out, or exhaling. Asthma is a disease that affects the lungs and the airways that deliver air to the lungs. It causes periodic attacks of wheezing and difficult breathing.