• What Is Asthma? - NHLBI, NIH

    www.nhlbi.nih.gov/health/health-topics/topics/asthma Asthma (AZ-ma) is a chronic (long-term) lung disease that inflames and narrows the airways. Asthma causes recurring periods of wheezing (a whistling sound when you ...
  • Asthma and Asthma Attacks Center: Symptoms, Causes, Tests ...

    www.webmd.com/asthma/default.htm Asthma (reactive airway disease) affects an estimated 34 million people in the U.S. Find in-depth asthma information, including treatments, triggers, and prevention.
  • Asthma - Mayo Clinic

    www.mayoclinic.org/diseases-conditions/asthma/basics/definition/CON-20026992 Asthma — Comprehensive overview covers symptoms, treatment of this chronic lung condition.
    • CDC - Asthma

      www.cdc.gov/asthma/default.htm Asthma is a disease that affects your lungs. It causes repeated episodes of wheezing, breathlessness, chest tightness, and nighttime or early morning coughing.
    • Asthma - Wikipedia, the free encyclopedia

      en.wikipedia.org/wiki/Asthma Asthma (from the Greek ἅσθμα, ásthma, "panting") is a common chronic inflammatory disease of the airways characterized by variable and recurring symptoms ...
    • Asthma Symptoms, Diagnosis, Management & Treatment | AAAAI

      www.aaaai.org/conditions-and-treatments/asthma.aspx An overview of asthma symptoms, asthma diagnosis, asthma treatment and asthma management written and reviewed by the leading experts in allergy, asthma and immunology.
    • Asthma Symptoms - Mayo Clinic

      www.mayoclinic.org/diseases-conditions/asthma/basics/symptoms/con-20026992 Asthma symptoms vary from person to person. You may have infrequent asthma attacks, have symptoms only at certain times — such as when exercising — or have ...
    • Asthma - National Library of Medicine - PubMed Health

      www.ncbi.nlm.nih.gov/pubmedhealth/PMH0001196 Asthma is a chronic (long-term) lung disease that inflames and narrows the airways. PubMed Health Glossary (Source: NIH - National Heart, Lung, and Blood Institute)
    • CDC - Asthma - About Asthma

      www.cdc.gov/asthma/faqs.htm What Is Asthma? Asthma is a disease that affects your lungs. It is one of the most common long-term diseases of children, but adults can have asthma, too.
    • Asthma: Definition and Triggers - eMedicineHealth: Asthma

      www.emedicinehealth.com/asthma/article_em.htm Learn the definition of asthma and get the facts on asthma triggers, symptoms, diagnosis, treatment, an asthma action plan, and more.