High low pressure suggests poor vascular elasticity. Low pressure is usually referred to as diastolic pressure, when the heart diastole, aortic blood flow is reduced, the aortic pressure drops, so that the arterial vascular elasticity retraction, the pressure generated at this time that is known as the diastolic pressure. When the elasticity of blood vessels is poor, the resistance of blood vessels to retraction increases, resulting in an increase in diastolic blood pressure. Therefore, high diastolic blood pressure suggests that blood vessel elasticity is poor. Many factors affecting diastolic blood pressure, including heart rate is one of the common causes, heart rate increases, resulting in short diastole, so that small arteries flow to the periphery of the blood to reduce the end of diastole of the heart in the aorta of the blood flow increased, resulting in increased low pressure; peripheral resistance increases, the aorta to the peripheral vascular outflow of blood slows down, the aorta of the blood retained in the aorta, so the diastolic blood pressure increases. When the diastolic blood pressure continues to increase, it is recommended to consult a doctor in time and carry out standardized treatment under the guidance of a physician, so as to avoid delaying the condition and causing adverse consequences.