If you forget things, you should consider the following two reasons: firstly, it may be functional, this kind of patients are mainly caused by long-term poor sleep, fatigue or brain in a state of fatigue, which belongs to functional amnesia; secondly, patients always forget things should consider organic problems, which may be caused by problems in the memory nerves of the cerebral cortex. There are many reasons for this. In the case of elderly people, it may be caused by Alzheimer’s disease, or brain atrophy, or brain tumors, traumatic brain injury, encephalitis, etc., causing memory loss. It may also be caused by some systemic diseases, such as malnutrition, chronic poisoning, etc., which lead to damage to the patient’s brain and the formation of amnesia.