Normal human pulse is 60-100 beats per minute, normal human pulse is equal to the heart rhythm, heartbeat is also between 60-100 beats per minute, lower than 60 beats per minute, is bradycardia, higher than 100 beats per minute, is tachycardia. Bradycardia and tachycardia have physiological and pathological points, physiological bradycardia is seen in the greater amount of exercise staff or a part of the athletes, pathological bradycardia can be seen in the long-term use of β-blocker patients, such as beta-blockers, such as betalock, Konstin, and a part of the hypothyroidism of the patient will also appear bradycardia, and then there is the sinus node function is low, these patients are prone to bradycardia. These patients are prone to bradycardia. Physiological tachycardia can be seen in tension, anxiety, mood swings or after strenuous exercise and can be relieved after rest or removal of triggers, while pathologic tachycardia can be seen in sympathetic excitation or hyperthyroidism, and needs to be treated according to the cause.