Low pressure in hypotension, between 60-89 mmHg, is a normal range, and high pressure, also known as systolic pressure, between 90-139 mmHg, is a normal range. If it is above or below this blood pressure curve, it is abnormal. In regulating blood pressure, first of all, we should pay attention to the regularity of diet, do not eat greasy, barbecue, fried and other foods, and eat more green vegetables and fruits. In addition, maintain a certain amount of exercise, control weight, do not stay up late, do not smoke and drink alcohol and take other stimulating foods, such as strong tea, coffee, etc.. If your blood pressure fluctuates greatly, you can take medication to lower or raise your blood pressure. Do regular review and adjust the dosage of medication according to the fluctuation of blood pressure.