31-year-old cerebral blood supply deficiency may be caused by mental tension, excessive stress, neurasthenia, poor sleep and staying up late. You should relax, reduce stress, participate in physical exercise appropriately, develop good habits, get up on time, and ensure sufficient sleep may ease the symptoms. Smoking may also be caused by smoking, which can damage the lining of blood vessels and cause the blood to collect in the walls of the vessels, causing stiffness and narrowing of the lumen, and causing insufficient blood supply to the brain. If the patient is female, most of them may also be caused by anemia, which can also cause cerebral blood supply deficiency, and prolonged head-down playing with cell phones and computers may also cause cerebral blood supply deficiency. If the patient is caused by looking down at the cell phone or computer, the time spent playing with the cell phone or looking at the computer should be reduced; if the patient is caused by anemia, the cause of the anemia should be actively identified and the cause should be treated accordingly.