====== Exercise-Induced Asthma (EIA) ======

//Exercise Induced Asthma, //or// EIA //(also known as //Exercise-Induced Bronchoconstriction, EIB//) is a form of [[content:medicine:diseases:a-f:asthma]] (constriction of the airways) which is triggered by strong exercise. It was first reported in 1989.

It's prevalent amongst professional athletes at a far higher level than the general population. For example, some studies have put the prevalence as high as 45% for cyclists and 55% for skiers and skaters,

Although the trigger is known (heavy exercise) the biological mechanisms which lead to EIA asthma attacks, and to such a high prevalence in athletes, are currently unknown.

It's suggested that extensive breathing of cold air via the mouth may be a factor - although it's also found (though to a lesser extent) in athletes who compete in 'Summer' sports.

For extensive technical details see [[https://onlinelibrary.wiley.com/doi/10.1111/j.1398-9995.2008.01662.x|Allergy Journal]] {{:oa_padlock_grn.png?16&nolink|Open Access}}Volume 63, Issue 4.