In the cold winter, you easily get a cold and some other breathing or lungs problems.
If you cough, wheeze or feel out of breath during or after exercise, it may be more than exertion causing your symptoms. You might have exercise-induced asthma. As with asthma triggered by other things, exercise-induced asthma symptoms occur when your airways tighten and produce extra mucus.
If you have exercise-induced asthma — also called exercise-induced bronchospasm (BRONG-ko-spaz-um) — physical exertion may be the only thing that triggers your symptoms. Or, exercise may be just one of several things that trigger your asthma. But having exercise-induced asthma doesn't mean you shouldn't exercise.