In the process of soaking feet, the heart rate is faster than usual because of the accelerated blood circulation. If the time is too long, it is easy to increase the inner commitment. In addition, because too much blood will tonify the kidney and strengthen yang, these traditional Chinese medicines flock to the lower limbs, and people with weak constitution are prone to dizziness due to insufficient blood supply to the brain, and even faint in severe cases. Among them, patients with cardiovascular and cerebrovascular diseases and the elderly should pay special attention. If you feel chest tightness and dizziness, you should temporarily stop soaking your feet and lie in bed immediately.