The normal heart rate of the population is 60-100 beats/min, while the normal range for the elderly is 55-100 beats/min due to the degeneration of the heart system. If an elderly person develops a rapid heart rate, he or she should consider whether there is a lung, thyroid or heart lesion itself, and can be diagnosed clearly after an electrocardiogram is performed at a hospital. In addition, if a patient takes his or her own pulse at home and finds that the heart rate is faster than usual, he or she should actively go to the hospital and have an electrocardiogram and other related tests performed to confirm the cause and provide appropriate treatment.