Asthma

Asthma is a disease of the airways, the small tubes which carry air in and out of the lungs. When you have asthma symptoms the muscles in the airways tighten and the lining of the airways swells and produces sticky mucus. These changes cause the airways to become narrow, so that there is less space for the air to flow into and out of your lungs.

For more information please click the following links

http://www.nationalasthma.org.au

http://www.asthmaaustralia.org.au