7 Surprising Asthma Triggers to Know About
GQ -

During an asthma attack, the airways responsible for bringing fresh oxygen into the body become inflamed. The muscles in the lungs and bronchial tree (or the windpipe and channels connecting it to the lungs) swell and tighten, restricting your airflow. At the same time, the airways increase mucus production; this is an immune response meant to trap pathogens—but in reality, it further clogs your pipes. Inflammation happens when the body fights off something it determines to be foreign or...

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