How Asthma Causes a shortness in breath.A look inside ...

http://Relief-Asthma.BlogSpot.com/ Look to the normal respiratory system ,how air enter ?how gas exchanges happen,there is little resistance to the air,the whole of the bronchial is relaxed. When Asthma happen,the bronchial becomes inflamed by various reasons,this results of inflammation,overproduction of mucus which make the air ways narrow. There are several treatment of asthma,the most common is epinephrine,see how it works and how it treats asthma. http://Relief-Asthma.BlogSpot.com/