High pressure of 140 mmHg and low pressure of 90 mmHg are not normal. At present, it is generally advocated that the target value of blood pressure control should be less than 140/90mmHg. In patients with diabetes, chronic kidney disease, heart failure or coronary heart disease combined with hypertension, the target value of blood pressure control should be less than 130/80mmHg. If there are no abnormal symptoms such as dizziness or diabetes, coronary heart disease and other diseases, generally do not use drug treatment, mainly adopt lifestyle intervention, especially diet, so that blood pressure be controlled and gradually return to normal level. First, a low-salt and low-fat diet, with a daily salt intake of no more than 6g and less or no fatty meat and animal offal; second, weight control, keeping BMI (body fat index) at 24kg/㎡, body mass index (BMI) = weight (kg) ÷ height (m) squared; third, paying attention to lifestyle, quitting smoking and limiting alcohol, increasing exercise, reducing mental stress and maintaining a balanced mind. When hypertension occurs, timely consultation and reasonable treatment should be carried out. If you are a hypertensive patient yourself or have diabetes or coronary heart disease, you should follow up promptly and not adjust the dose and type of medication without authorization.