The normal range of blood pressure in adults is 90~ 139/89~60mmHg, and so is the elderly. However, due to the decrease of arterial elasticity, most elderly people may have changes such as slightly higher systolic blood pressure, lower diastolic blood pressure and increased differential pressure. The blood pressure of the elderly is 99/55, the high pressure is close to 100, and the low pressure is slightly lower than 55, but it has little effect on organ blood supply. As long as there are no obvious symptoms, most of them are not pathological. For the elderly, in order to be cautious, it is recommended to have a heart and blood examination, such as blood routine, echocardiography and electrocardiogram. If there is no anemia, heart disease or cardiac insufficiency, don't worry.