What are the adverse reactions of running?

Many runners are accompanied by severe cough, mainly caused by bronchial contraction, and the pathology is similar to asthma. Jordan Mecl, a doctor of sports medicine in new york, USA, said: "When your exercise intensity is much stronger than usual, exercise-induced bronchoconstriction will occur. This is due to the spasm of small muscles in the lungs. This phenomenon mostly occurs at the beginning or end of the year. At this time, people's state will not be the best time. " Experts suggest that it is easy to cough after running in cold or dry weather, because the trachea needs to moisten the air inhaled into the lungs, resulting in dry and painful trachea. In this case, it is helpful to wear a thin scarf to cover your mouth.