According to washingtonpost.com, one of out three college athletes has exercise-induced asthma.

The Ohio State University study found that exercise-induced asthma typically occurs between five minutes and 20 minutes after intense physical exertion. Symptoms may include wheezing, chest tightness, coughing, shortness of breath, and chest pain.

Seven percent of Americans are known to suffer from asthma, but many others - about one in 10 people - experience exercise-induced asthma, even if they have no history of asthma.