There are several reasons for headache: 1, may be caused by cold brain, usually pay attention to the head to keep warm, especially when the weather is cool; 2, may be caused by their own trauma; 3, may be lack of sleep, often stay up late resulting in neurasthenia, can be under the advice of the doctor oral tranquilizer brain liquid, or other treatment of nerve class drugs; 4, may be intracranial lesions For the sake of insurance, it is recommended to do a brain CT or MRI; 5, it may be related to cardiovascular diseases, such as cerebral atherosclerosis; 6, insufficient blood supply to the brain can also cause the symptoms of headache, usually eat more food to supplement the blood, or drugs to regulate their bodies; 7, lack of oxygen to the head can also cause the symptoms of headache.