A heartbeat of 60~100 beats/minute at the age of 65 is normal, there is no best value, and the body has no uncomfortable symptoms. Elderly and young people’s normal heart rate range is the same, for 60 ~ 100 times / min, generally older people than young people’s heartbeat slower, in the evening when sleeping, its heart rate may be in the 50 ~ 60 times / min, but as long as the body does not have uncomfortable symptoms, these are normal physiological phenomena. If the heart rate of the elderly is too fast, it will increase the oxygen consumption of the heart muscle, the supply of blood to the coronary arteries will be reduced accordingly, which will easily cause ischemia, hypoxia, etc., and will show symptoms such as chest tightness, chest pain, weakness and dizziness. If the heart rate is too slow, chest tightness, fatigue, dizziness, or even fainting may also occur, requiring timely medical treatment and adjustment under the guidance of a doctor. Elderly people are advised to seek timely medical examination and treatment when they realize that their heart rate is abnormal or when they experience the above symptoms, so as to avoid endangering their lives.