Dizziness after running is usually caused by the following four reasons: 1. hypoglycemic reaction. 2. acute cardiac and cerebrovascular blood supply deficiency. 3. severe lack of oxygen. 4. hypotension. Specific measures are as follows: 1. drink a lot of thick sugar water, functional drinks, thick honey water, timely replenishment of the hypoglycemic situation, timely supply of sugar and oxygen to the body. 2. after running, should not immediately stop exercise and stillness, should slowly do limb stretching and relaxation exercise, until the heart rate little by little down, only then can stop exercise, otherwise it will cause transient hypotension. 3. should carry out a certain amount of oxygen therapy. Such as to the hospital bottle wall oxygen, can improve the brain ischemia and lack of oxygen state. 4, can take off the body damp and tight clothing, to a cool, dry, ventilated environment, to avoid further dizziness.