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Common Causes of Asthma

Updated on July 26, 2009

Asthma is the result of a hypersensitivity reaction to stimuli. Asthma is a condition due to both hereditary and environmental factors. It involves inflammation and constriction of air passages.

An asthma attack may be provoked by:

  • Allergens – animal dander, dust, certain food and medicines, mites, mold spores, pollen.
  •  Viral or bacterial infections – bronchitis, cold or the flu, coughs, sinusitis, strepthroat.
  • Environmental irritants and pollutants – exhaust gases, hair spray, perfumes, smoke from tobacco or wood.
  • Aspirin and NSAIDs  act as triggers in a small percentage of people with asthma. Because aspirin-induced asthma can be severe and come on very quickly, you should avoid taking aspirin and other NSAIDs if you have aspirin-sensitve asthma .
  • Emotional stress – excitement, stress, fear.
  • Strenuous exercise that involves continuous movements over a long period in cold, dry air.



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