High low pressure refers to low pressure more than 90mmHg, this situation is relatively common in the clinic, mainly related to the following factors: first, with the heart rate increase, a cardiac cycle including cardiac systole and diastole, in the case of heart rate increase in the systole of the heart is relatively growing, diastole is relatively shortened, the heart can shoot more blood to the aorta, which caused the lower pressure increases. Secondly, it is related to the increase of peripheral vascular resistance. When peripheral vascular resistance increases, the resistance of blood flowing from the aorta to the periphery will increase, and the amount of blood left in the aorta will increase, thus causing the lower blood pressure to increase. Third, bad habits, the most common such as staying up late, anxiety, lack of sleep and other factors can cause increased blood pressure, change bad habits, avoid staying up late, keep a calm mind, and often exercise to help reduce blood pressure.