What Is Asthma?

Asthma is a disease that affects the airways of the lungs. It makes it hard for you to breathe. Asthma is a common health problem. In fact, about 26 million people have asthma in the United States.

Sometimes when you breathe in pollen, smog, or dust, it can get into your lungs. For most people, these things don’t cause any problems. If you have asthma, your airways may be more sensitive. Things such as pollen and dust make you feel like you cannot breathe. People with asthma say it feels like trying to breathe through a straw.

Learn more about asthma and what you should do if you think you have it. If you have asthma, a goal of your asthma treatment is to help you control your symptoms.


Ask your health care provider any questions you might have. Make sure that you understand.

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