At present, it is generally recommended that blood pressure be controlled below 140/90 mmHg, but if the patient has a combination of diabetes mellitus, chronic kidney disease, heart failure, or coronary artery disease with a more stable condition, it is recommended that blood pressure be controlled below 130/80 mmHg. For simple systolic hypertension in the elderly, it is generally recommended that the systolic blood pressure be controlled below 150 mmHg, or below 140 mmHg if the patient has a relatively good tolerance and does not have symptoms of organ symptoms of ischemia, such as dizziness and fatigue, etc., the blood pressure can also be controlled below 140 mmHg. In the process of lowering blood pressure, it is generally necessary to control the blood pressure in the target range as early as possible, but not the faster the better, most patients with hypertension should be reduced to the target level within a few weeks, or even a few months depending on the condition of the patient, generally young people, patients with a shorter course of the disease can reach the target a little faster, and older people, patients with a long course of the disease should be slower in the process of lowering the blood pressure.