For patients with high blood pressure and low blood pressure, eating food containing sodium in moderation is beneficial to the recovery of the condition, such as drinking light salt water. However, if you suffer from postural hypotension, shock and other diseases that cause low blood pressure, you need to follow the doctor’s instructions to use medication, through diet does not play a therapeutic effect. High pressure is low, low pressure is low, that is, low blood pressure. Patients can drink a moderate amount of light salt water. Salt water contains sodium, and drinking it can raise the blood pressure value to a certain extent. However, only by adjusting the diet, there is no significant effect on the recovery of low blood pressure. If high blood pressure is caused by postural hypotension, patients can take oral medications such as fludrocortisone and midodrine as prescribed by the doctor to promote the rise of blood pressure. If the degree of hypotension is serious, for example, if the hypotension is triggered by shock, it is recommended to follow the doctor’s instructions to carry out blood transfusion and other treatments to replenish blood volume and promote the rise of blood pressure. For patients with mild high blood pressure and low blood pressure, they can drink a moderate amount of salt water to regulate, but the effect of food regulation is not obvious. If the degree of low blood pressure is more serious, it is recommended to consult a doctor in time to prevent adverse symptoms caused by long-term low blood pressure.