1 First of all, too much exercise leads to some hypoxia, and too much exercise leads to hypoxia.

2. If the salt water in the human body is unbalanced, it is also very likely to cause dizziness and vomiting.

3. Drinking light salt water after exercise and supplementing salt in the body can effectively eliminate dizziness and vomiting caused by excessive exercise.

4. Once the exercise intensity is too high, the oxygen transportation and utilization rate of human body can't keep up, which will cause hypoxia, leading to dyspnea and nausea.

Therefore, the exercise must be gradual, not aggressive, bear as much load as possible, adapt to the old load, and then slowly increase.