Arterial blood pressure refers to the side pressure of blood pumped from the heart to the inner wall of blood vessels. Arterial blood pressure can only circulate blood to every corner of the body if it reaches a certain value, and if the blood pressure is too low, the distal end of the body will not be perfused with blood, and dizziness, weakness, and cold extremities will occur. Blood pressure is too high is the result of poor vascular elasticity, poor vascular elasticity is related to high blood lipids or other diseases that cause microvascular lesions, the body will be uncomfortable with the side pressure of blood on the blood vessels, there will be dizziness, headache, if the blood pressure is high to a certain extent, resulting in blood vessel rupture and bleeding. Arterial blood pressure must be in a reasonable range, neither produce discomfort, the whole body can be nourished by the blood, blood pressure is too low or too high to actively intervene, low blood pressure in addition to the heart itself, related to the lack of blood filling degree.