Blood pressure is the driving force of blood circulation, and too high or too low can seriously affect your health. When is the most accurate blood pressure measurement, can not be generalized, the human blood pressure has a fluctuation range, if a patient with hypertension, you can choose 6-10 a.m. or 4-8 p.m. to measure blood pressure, because this time stage is the highest human blood pressure when, that is, the peak blood pressure period. It is especially important for blood pressure grading treatment, hypertension is divided into 3 levels of systolic blood pressure greater than 180mmHg is severe hypertension, which can easily lead to intracranial hemorrhage. Measuring blood pressure can tell the most dangerous level of hypertension. If the blood pressure is measured avoiding the peak period, it is impossible to accurately determine the data of the body’s highest blood pressure, and treatment will be delayed. In the case of low blood pressure, avoiding the measurement of blood pressure during the peak period will allow you to know the data of the lowest human blood pressure, and active treatment will minimize the danger.