This may be caused by functional factors of the body. Because of strenuous exercise, the whole body blood circulation is fast, and the function of heartbeat can't keep up. Moreover, without the support of qi and blood, the human body will first feel numb at the end of the limb. You may not be strong either. If you don't supplement your diet well, you may feel numb under strenuous exercise. Therefore, it is necessary to pay attention to exercise not to exceed the endurance of the heart, and generally these symptoms will not appear. It is best to do more exercise and fitness at ordinary times to improve the exercise intensity that the body can adapt to. Exercise intensity is high, so it is necessary to ensure that the body needs adequate nutrition. You can choose to eat some supplements such as protein powder in moderation. For example. PQ fitness, PQ fitness, PQ fitness, PQ fitness, PQ fitness, PQ fitness, PQ fitness, PQ fitness, PQ fitness, PQ fitness, PQ fitness, PQ fitness, PQ fitness.