Some people have exercise-induced
asthma, which means that their asthma symptoms (such as coughing, wheezing, or
shortness of breath) are triggered by exercise or physical activity. A person may
have exercise as his or her only asthma trigger, or it may be one of many triggers.
These symptoms are usually noticed during or shortly after exercise. When they are
properly treated, most people with exercise-induced asthma can play sports like anyone
else. In fact, more than 10% of Olympic athletes have exercise-induced asthma that
they've learned to control.