If you feel tired and want to sleep, it may be caused by overuse of eyes, if you look at the cell phone or computer for a long time, you should reduce the time of looking at the cell phone and playing with the computer and take proper rest. In severe cases, it may also be caused by organic lesions, such as brain tumors, headache, nausea, vomiting, and physical symptoms and signs. If there is cerebrovascular disease, it can also be caused by encephalitis, and if necessary, cranial MRI can be examined to clarify the diagnosis. If the patient has been mentally stressed for a long time, lack of sleep for a long time may also cause to relax, reduce stress, properly participate in outdoor sports properly, proper physical exercise, may improve the symptoms, at the same time to develop good habits, sleep and wake up on time, do not stay up late to ensure adequate sleep time.