Asthma

It is an inflammatory disorder of the airways that causes attacks of wheezing, shortness of breath, chest tightness and coughing.

Asthma affects the airways. When a person breathes normally, air is taken in through the nose or mouth and then goes into the trachea and bronchi to reach the lungs, where it is expelled again outside. But people with asthma have a propensity that are inflamed airways. That they swell and produce lots of thick mucus.
 
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