wilfredobeng7
wilfredobeng7
12-09-2021
Medicine
contestada
How does asthma occur?
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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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