For blood pressure to be maintained at least 140/90mmHg or less, this is normal, but each age group, whether there are comorbidities, or whether there are no complications are different, like young patients or people with diabetes, renal insufficiency, the recommended blood pressure should be controlled at 130/80mmHg or less. For elderly patients, because they are prone to increased pulse pressure difference and low diastolic blood pressure, so for elderly people over 65 years old, it is recommended to maintain blood pressure below 150/90 mmHg, without excessive strict requirements, but the diastolic blood pressure of the elderly should not be lower than 60 mmHg as much as possible, in order to prevent low diastolic blood pressure resulting in relative insufficiency of coronary artery blood supply. At the same time, people with hypertension must pay attention to the standardized application of drugs for blood pressure control and therapeutic lifestyle interventions.