If the heart rate is 120 beats per minute after exercise or shock, it is a physiological change, and it is enough to pay attention to rest and calm the mind; if the heart rate is faster when resting, it needs to be controlled by medication after the cause of the disease is clarified, or surgical treatment. There are many clinical reasons for rapid heart rate, such as exercise, nervousness, shock, etc., which can cause rapid heart rate, and the heart rate can be normalized by resting and calming the mind. If the heart rate accelerates at rest, it belongs to tachycardia, the most common causes are atrial fibrillation, atrial tachycardia, ventricular tachycardia, etc. At this time, it needs anti-arrhythmic treatment, and the heart rate can be calmed by the use of medicines such as metoprolol, diltiazem, and so on. It may also be secondary to hyperthyroidism, myocarditis, myocardial infarction, etc., and requires treatment of the primary disease. For pathologic arrhythmias, radiofrequency ablation can also be used to treat the arrhythmia, if necessary, and the arrhythmia should be treated promptly in a hospital. Please follow the doctor’s prescription for medication.