Asthma is a symptom caused by respiratory disorders in the form of
heightened sensitivity to stimuli from the environment as a trigger. The
trigger symptoms may include fatigue of the mind (emotional distress),
physical fatigue, changes in the environment which is not expected
(weather, humidity, temperature, smoke (especially tobacco) and smells
stimulate, respiratory infections, especially of certain influenza
illness, and allergic reaction of the material inhaled or eaten.
