Sitting blood pressure of 150 mmHg lying down 120 mmHg is usually due to a change in body position that causes gravity to change and therefore has an effect on arterial blood pressure.
Normal adult quiet state, the normal value of blood pressure is 100-120/60-80mmHg, if the average of three times not the same day measured blood pressure, systolic blood pressure ≥ 140 and / or diastolic blood pressure ≥ 90mmHg can be diagnosed as hypertension. Generally, a systolic blood pressure of 150 mmHg is classified as grade 1 hypertension, and a diastolic blood pressure of >110 mmHg is classified as grade 3 hypertension.
Usually the pressure on the side walls of blood vessels caused by the blood flow process is called blood pressure, will be affected by the earth’s gravity field fluctuations; people in sitting when the arterial blood pressure will be higher than lying down, mainly because the heart is not at the same level with other organs and blood vessels, resulting in an increase in the pressure needed to return blood to the heart and caused.
Since the change of gravity will affect the arterial blood pressure, the above situation will occur; however, the venous blood pressure is generally lower and will not reach 150mmHg, so it will not cause the above symptoms. If the blood pressure exceeds the normal range, it is recommended to consult the cardiovascular medicine department in a timely manner, and treat the cause of the disease after clarifying the cause under the guidance of the doctor.