Most of the time, the breathlessness is caused by the spasm of respiratory muscles, which can be adjusted by holding the breath after taking a deep breath and then gently tapping the chest, which can’t be relieved and requires timely medical treatment. The main reason for breathlessness during running is that the internal organs and muscles do not enter the exercise state in time due to insufficient warm-up during running, resulting in insufficient supply of nutrients and oxygen to the muscles. You can immediately stop the movement, and then inhale oxygen in a large mouth, gently beat the chest to relieve, this method can inhale a large amount of oxygen in a short period of time, repeat a few times can relax the respiratory muscles, relieve the symptoms. It is recommended that running, soccer and other sports should be fully warmed up, if any discomfort occurs during exercise, you should immediately go to the hospital for examination, treatment under the guidance of the doctor, do not indiscriminate use of drugs.