Exercise induced bronchospasm (EIB)

Exercise-induced bronchospasm (EIB) happens when the airways in your lungs narrow when you exercise. This makes it hard to breathe. If you have EIB, it may be hard to exercise for more than 30 minutes at a time. EIB also is called exercise-induced bronchoconstriction. It is the same thing as exercise-induced asthma. Symptoms of EIB start after about 5 to 20 minutes of non-stop exercise. The length of time depends on how severe your condition is. Symptoms can include trouble breathing, coughing, chest pain, chest tightness, wheezing (breathing that makes a hoarse, squeaky, or whistling sound).