Do you cough, wheeze and have a tight chest or shortness of breath when you exercise?
If yes, you may have exercise-induced bronchoconstriction (EIB). This happens when the tubes that bring air into and out of your lungs narrow with exercise, causing symptoms of asthma.
An estimated 300 million people worldwide suffer from asthma, according to the World Health Organization, and strenuous exercise makes it worse for many people. Some people with EIB do not otherwise have asthma, and people with allergies may also have trouble breathing during exercise.