High and low blood pressure should seek medical attention in time, after clarifying the cause of the disease, symptomatic treatment, life and diet also need to be improved. High pressure refers to the systolic blood pressure, low systolic blood pressure refers to less than 90mmHg, the cause of low systolic blood pressure may be physiological, if it is physiological, do not need special treatment, rest for a period of time after the general blood pressure will return to normal, and later regular monitoring of blood pressure can be. However, low systolic blood pressure can also be caused by some diseases, so if the systolic blood pressure is persistently low, it is recommended to consult a doctor to clarify the cause of the disease and then actively treat it. Diet also needs to be paid attention to after the discovery of low systolic blood pressure, it is recommended to give high nutrition, easy to digest and rich in vitamins food, appropriate supplementation of vitamin C, vitamin B group. Appropriate consumption of coffee, cocoa and strong tea can help increase the excitability of the central nervous system and improve the central ability of vasoconstriction. Proper exercise also helps to improve the situation. If abnormal blood pressure is detected, it is recommended to consult a doctor as early as possible to avoid delaying the condition.