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Asthma is a chronic disease that affects your airways. Your airways are tubes that carry air in and out of your lungs. If you have asthma, the inside walls of your airways become sore and swollen. That makes them very sensitive, and they may react strongly to things that you are allergic to or find irritating. When your airways react, they get narrower and your lungs get less air.

Symptoms of asthma include

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Illustration of asthma
Results 1 - 10 of 2,266 for asthma
  1. Asthma (National Library of Medicine)  
    Asthma is a chronic disease that affects your airways. Your airways are tubes that carry air in and out of your lungs. If you have asthma, the inside walls of your airways become sore ...
  2. Asthma in Children (National Library of Medicine)  
    Asthma is a chronic disease that affects your airways. Your airways are tubes that carry air in and out of your lungs. If you have asthma, the inside walls of your airways become sore ...
  3. Asthma Interactive Tutorial (Patient Education Institute)  
    Asthma Introduction Asthma is a common disease of the lungs, affecting millions of Americans. This patient education reference summary will help ...
  4. Pediatric asthma; Asthma - pediatric ... Asthma is caused by swelling in the airways. During an asthma attack, the muscles surrounding the airways ...
  5. Asthma: Limit Asthma Attacks Caused by Colds or Flu (Mayo Foundation for Medical Education and Research)  
  6. Asthma - occupational exposure; Irritant-induced reactive airways disease ... Asthma is caused by inflammation (swelling) in the airways of the lungs. When an asthma attack occurs, ...
  7. Bronchial asthma ... Asthma is caused by inflammation (swelling) in the airways. When an asthma attack occurs, the lining of the air passages ...
  8. Predicting Asthma in Preschool Children with Asthma-Like Symptoms (American Academy of Allergy, Asthma, and Immunology)  
    ... data collected on 2,171 children with preschool asthma-like symptoms participating the PIAMA study (development study) and 2,877 children with preschool asthma-like symptoms, participating in the multi-ethnic prospective ...
  9. ... Data Brief Number 94, May 2012 Trends in Asthma Prevalence, Health Care Use, and Mortality in the ... National Health Care Surveys, National Vital Statistics System Asthma prevalence increased from 2001 to 2010 and is ...
  10. ... Children Aged 3‒19 Years With and Without Asthma in the United States, 1999‒2010 On This ... percentage of children aged 3‒19 years without asthma exposed to ETS decreased from 1999 to 2010, ...
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