February 19th, 2009 
admin Asthma affects the lining of the bronchi and the bronchioles. These airways become inflamed and produce extra mucus. Smooth muscle tissue in the airways contracts, narrowing the passageways even further. Common symptoms of asthma include wheezing. shortness of breath, chest tightness, and coughing. Signs of an asthma emergency include extreme difficulty breathing, bluish tinge to [...]
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