wilfredobeng7
wilfredobeng7 wilfredobeng7
  • 12-09-2021
  • Medicine
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How does asthma occur?​

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helahqaderi1234
helahqaderi1234 helahqaderi1234
  • 13-09-2021
Asthma is caused by swelling (inflammation) of the breathing tubes that carry air in and out of the lungs. This makes the tubes highly sensitive, so they temporarily narrow. It may happen randomly or after exposure to a trigger.
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