Why shouldn't children play the game of "throwing handkerchiefs"?

"Handkerchief Lost" is a common game, but it is not suitable for children. The child's heart and lung function is tender and weak. In the game of "losing handkerchief", he has to run violently for a while and suddenly sit down or squat down for a while. Children often clap their hands and sing while panting, which is undoubtedly unfavorable to the normal development of the heart and lungs. Therefore, although "losing handkerchief" is a traditional game, it should be "reformed" from the perspective of modern medical care.