An average heart rate of 58 beats/minute is low for a normal adult in the waking state; it may be normal for older adults, athletes, and adults who are asleep. Normally, the heart rate of normal adults in the quiet state is 60~100 beats/min, while the elderly, athletes and during sleep will lead to a lower heart rate, which may be lower than 60 beats/min and up to 58 beats/min, but it belongs to the normal physiological changes, and usually does not need special treatment, and there is no need to worry about it. If the heart rate is slowed down to 58 beats/min due to taking drugs such as metoprolol, nifedipine, digitalis, amiodarone, etc., or due to factors such as severe hypoxia, hypothermia, hyperkalemia, and hypothyroidism, it is necessary to pay attention to it and consult a doctor in time. Normal adults who experience an average heart rate of 58 beats/minute while awake or while taking the above medications are advised to go to the hospital promptly to find out the cause and receive proper treatment.