Asthma is a lung disease that causes inflammation of the airways that makes it difficult to breath.

Asthma may be triggered by infections (colds, flu), cigarette smoke, allergens (pollen, mold, dander), exercise, changes in temperature, or stress. During an asthma attack, the muscles that wrap around the airways tighten and the insides of the airways become swollen and produce extra mucus. These changes block the flow of air, and can lead to symptoms of chest tightness, coughing, and wheezing. 

Many people with asthma may have lung inflammation without any noticeable symptoms. In severe cases, the body is not able to get enough oxygen and hospitalization may be necessary.

It is not known what causes the airways of people with asthma to react differently than other people and there is no cure. However, most people with asthma can manage the symptoms and lead active lives.

Please refer to our educational resources to learn more about asthma.

© 2008 Vivacare.
Last updated November 25th, 2008.