A heart rate of 50-60 beats/minute may be abnormal, but it may also be normal and does not usually lead to death. The normal human heart rate is 60-100 beats/minute, but the normal heart rate of athletes and elderly people may be less than 60 beats/minute. In addition, about 15% of normal people can have a heart rate of less than 60 beats/min when they are quiet, especially men, so finding a heart rate of 50-60 beats/min is not necessarily abnormal. In the absence of any other symptoms, death does not usually occur as a result. Pathological factors such as hypothyroidism and obstructive jaundice may also lead to a slow heart rate, but they do not usually cause death either. However, a slow heart rate may also result from acute inferior wall myocardial infarction, intracranial disease, or severe hypoxia. Such patients may have life-threatening conditions and should be treated aggressively. If a patient has a heart rate of 50-60 beats/min and is often accompanied by symptoms such as dizziness, transient blackouts, palpitations, shortness of breath, or even fainting in severe cases, he/she should go to the hospital for examination and timely treatment.