A slow heart rate does not usually lead to sudden death, and even in some people a slow heart rate is normal and does not require treatment. However, there are a small number of patients with a slow heart rate who will experience sudden death. The normal heart rate is usually 60-100 beats per minute, but athletes, the elderly, and about 15% of normal people can have a heart rate less than 60 beats per minute, which is normal and usually does not result in sudden death. If the patient’s examination only reveals a slow heart rate with no other uncomfortable symptoms, there is no need to worry too much. If the patient has hypothyroidism, obstructive jaundice or is taking beta-blockers or calcium channel blockers, the slow heart rate may also cause sudden death, but it usually does not. If the slow heart rate is caused by acute inferior wall myocardial infarction, intracranial disease, or severe hypoxia, such patients may have a life-threatening condition and should be treated aggressively. If the patient only has symptoms of slow heart rate and no other physical discomfort is found, it is recommended that there is no need to worry and observation is sufficient.