Why do so many Olympic athletes suffer from asthma?

Asthma is the most common chronic disease for athletes who attend the Olympic Games, a study said.

About 8% of Olympic athletes have asthma or narrowing of their airways - one of the symptoms of asthma.

The study analyzed the information of athletes who participated in the 5 Summer and Winter Olympics from 2002 - 2010, from there to find athletes using asthma medicines belonging to beta-2 agonists.

This is a common chronic disease in athletes who practice sports that need great endurance.

Asthma occurs in older athletes, suggesting that asthma may be the result of years of intensive training, breathing in polluted or cold air.

However, athletes with asthma or airway stenosis can still have better performance and exercise results than others.