Asthma and exercise

An estimated 300 million people worldwide suffer from asthma, according to the World Health Organization. Some of these people only experience symptoms when exercising. If you cough, wheeze, have a tight chest or shortness of breath when you exercise, then you may have exercise-induced asthma or exercise induced bronchoconstriction (EIB). In people with EIB, the tubes that bring air into and out of your lungs narrow with exercise, causing symptoms of asthma.

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