Simplify the following text for a Grade 5 native English-speaking person.
Original: If the level of respiration is inappropriate for the body 's status then dyspnea might occur . It is worth noting that there is a psychological component of dyspnea as well , as some people may become aware of their breathing in such circumstances but not experience the distress typical of dyspnea .
Simplified: There are many different causes of dyspnea .