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  • Asthma - Symptoms and causes - Mayo Clinic
    Find out what can trigger asthma and how to relieve your symptoms and breathe easier
  • Asthma: Types, Causes, Symptoms, Diagnosis Treatment
    Asthma is a condition that causes your airways to swell, narrow and fill with mucus This can make it hard to breathe or cause other symptoms, like chest tightness, cough and wheezing
  • Asthma: Causes, Symptoms, and Treatment - WebMD
    Asthma, a persistent respiratory condition, narrows airways, causing breathlessness and difficulty breathing Explore symptoms, causes, diagnosis, and treatment on WebMD
  • Asthma - Wikipedia
    A sudden worsening of asthma symptoms sometimes called an 'asthma attack' or an 'asthma exacerbation' can occur when allergens, pollen, dust, or other particles, are inhaled into the lungs, causing the bronchioles to constrict and produce mucus, which then restricts oxygen flow to the alveoli
  • Asthma | Asthma | CDC
    Asthma is a disease that affects breathing and the lungs Asthma can be controlled with medications and avoiding triggers that cause an attack
  • Asthma - What Is Asthma? | NHLBI, NIH
    Asthma is a chronic condition that inflames and narrows the airways in the lungs Learn about asthma symptoms, attacks, causes, triggers, and treatments
  • Asthma - American Lung Association
    Asthma makes breathing difficult for millions of Americans There is no cure, but it can be managed and treated so you can live a normal, healthy life Find out how asthma affects the airways, what causes it and different types of asthma
  • Asthma: Symptoms, Treatment, and More - Healthline
    Asthma can make breathing difficult and cause coughing and wheezing Learn about the different types of asthma, risk factors, and prevention strategies




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