The normal range of blood pressure is 90-140 mmHg systolic and 60-90 mmHg diastolic. There are many factors that affect blood pressure, including sleep, mental state, emotions and a reasonable resting time. In order to ensure that blood pressure is in the normal range, it is necessary to pay attention to not staying up late, reasonable rest and rest time, and to avoid transient blood pressure increase caused by excessive mental stress. If the blood pressure exceeds the value, such as systolic blood pressure exceeding 140 mmHg and diastolic blood pressure exceeding 90 mmHg, on three consecutive measurements at different locations on non-same days, then it is called hypertension. After a state of hypertension, one should promptly correct poor lifestyle and dietary habits. After the blood pressure rises to a certain level and significantly exceeds the normal value, then one needs to go to the hospital for systematic treatment and develop a reasonable antihypertensive program.