A normal person’s heart rate of 60-100 beats/minute is normal, and if the heart rate is 58-60 beats/minute, it is a case of bradycardia, which is a mild form of bradycardia, and is usually caused by both physiological and pathological factors. Common physiologic factors include the patient’s sleep or the elderly, which may cause bradycardia. For some pathologic factors, the following are common: 1, endocrine metabolic diseases, such as hypothyroidism, adrenocortical insufficiency, the heart rate will be slow. 2, some infectious factors, such as patients with septic shock, the heart rate will be slow. 3, cardiac factors, such as coronary artery disease, myocarditis and other conditions will also be bradycardia. 4, If the patient has taken some drugs for a long time, such as betablockers, etc. can also lead to bradycardia.