Low pressure is not high, high pressure is high refers to simple systolic hypertension, simple systolic hypertension is most common in the elderly patients, the cause is mainly caused by aortic vascular sclerosis, due to the hardening of the large arteries elasticity decreases will lead to the systolic blood pressure increased significantly, and diastolic due to vascular sclerosis of its elasticity of the role of the storage device decreased significantly, which led to the decline of diastolic blood pressure, so caused by the simple systolic hypertension, simple systolic hypertension. In systolic hypertension, the pulse pressure difference increases significantly. For the treatment of simple systolic hypertension, we should emphasize to make the systolic blood pressure reach the standard, avoid excessive lowering of blood pressure, and gradually make the blood pressure reach the standard under the premise that the elderly patients can tolerate the antihypertensive treatment, avoiding to make the blood pressure drop too fast and too low. You can use the five major first-line antihypertensive drugs in the clinic, and you should choose the long-acting antihypertensive drugs.