What is Asthma?

Asthma is a disease of the airways and lungs. When something happens that sets off or triggers an asthma attack, your airways become inflamed and swollen, the muscles around your airways tighten, and it becomes hard to breathe. In addition, mucus clogs up the airways.1,2 The result could range from a mild cough or wheeze to difficulty breathing. In some cases, breathing may be so difficult that the asthma attack becomes life-threatening.

References:

1. American Academy of Allergy Asthma & Immunology. Topic of the Month: May 2005: Do You Have Good Asthma Control? Available at: http://www.aaaai.org/patients/topicofthemonth/0505/. Accessed January 2, 2009.

2. Department of Health and Human Services (HHS), Centers for Disease Control and Prevention (CDC). You Can Control Your Asthma. Available at: http://www.cdc.gov/asthma/faqs.htm. Accessed November 7, 2008.

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