Learn About Asthma | American Lung Association

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Learn About Asthma

Asthma is a chronic (or lifelong) disease that can be serious—even life threatening. There is no cure for asthma. The good news is that with proper management, you or your loved one with asthma can live a normal, healthy life. The more you can learn about asthma, the better you and your loved ones can manage living with this disease, making the most of every day and maintaining a high quality of life.

What Is Asthma?

Asthma is a chronic lung disease that makes it harder to move air in and out of your lungs. It can start at any age. Learn more about the basics of asthma  »

How Asthma Affects Your Body

With asthma, swollen airways become extra sensitive to some things that you are exposed to in the environment every day, or asthma "triggers." When you breathe in a trigger, your airways create extra mucus and swell even more, making it hard to breathe. Find out how asthma affects you »

How Serious Is Asthma?

Nearly 26 million Americans have asthma, including more than 7 million children. It causes millions of lost school and work days every year and is the third leading cause of hospitalization among children. There is no cure for asthma, but the good news is that it can be managed and treated, allowing you to live a normal, healthy life. See the impact of asthma »


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