Always dazed is mostly seen in mental tension and inattentiveness, mostly in young students and brain workers. Patients should usually pay attention to rest, ensure sufficient sleep, sleep no less than eight hours a day, work or study should pay attention to the combination of work and rest, avoid mental concentration for a long time. In addition, if the elderly often daze is seen in Alzheimer’s disease, vascular dementia. In addition to dementia, patients also show memory loss, abnormal behavior, personality changes, such as always forgetting to turn off the lights, gas stove, etc. Some patients show increased speech, and some patients show silence. The above conditions should be promptly seen in the neurology department of the hospital, and if necessary, a cranial MRI should be performed. The drugs commonly used clinically to improve dementia include meperidine, donepezil, oracetam and staphylocarpine A tablets, etc. The above drugs should be taken under the guidance of physicians.