There are many causes of empty head, common causes are mainly the following: 1, insomnia: mainly including difficulty in falling asleep, sleep maintenance time is short, easy to wake up early, etc., the serious cases can lead to dizziness, memory loss, empty head, mental lethargy, etc., you can take sedative-hypnotic drugs, such as alprazolam, dexrazoxane clone, to improve sleep to relieve the symptoms. 2, low blood pressure: due to inadequate blood supply, mainly manifested as dizziness, empty head, serious cases can cause shock, fainting, etc., usually need to closely monitor blood pressure. 3, fatigue syndrome: mostly seen in the personality, the main causes are as follows Insufficient blood circulation, mainly manifested as dizziness, empty head, serious cases will cause shock, fainting, etc., usually need to closely monitor the blood pressure situation, in serious cases can be taken pulse drink. 3, fatigue syndrome: most common in introverted, mental stress patients, improve the relevant examination without organic disease, mainly with chronic fatigue as the characteristic clinical manifestations, can be accompanied by inattention, empty head, fatigue, etc., through sufficient rest and appropriate exercise can improve the fatigue syndrome, and can also be used to improve the quality of sleep. Symptoms can be improved through adequate rest and appropriate exercise.