When doing various types of strenuous exercise, blood pressure will gradually increase and breathing as well as heart rate will become faster, only the magnitude of the increase will vary with the individual. At moderate exercise intensities, with an exercise heart rate at or below 70% of the target heart rate, the mercury column shows an increase in blood pressure of 20-30 mmHg, or about 10-20% above the otherwise normal blood pressure index. An increase in blood pressure due to exercise can quickly become normal after 30 minutes of rest, and a slower recovery of blood pressure would indicate weakened vascular elasticity. Older people will take longer to recover after exercise than younger people. Although regular exercise can speed up the body’s metabolism, which is beneficial to the body, but not too much exercise. If you experience dizziness, chest tightness or even breathlessness during exercise, you need to go to the hospital and stop exercising to diagnose the cause and prevent and treat it in a timely manner.