The most important characteristic of early Alzheimer’s is forgetfulness and poor memory, especially forgetting what has just been said or done. For example, Ms. Wu, who was sitting next to me last Thursday morning, said for her mother: “Her old man …… forgot who called just after he put down the phone; he repeatedly put salt in his cooking because he forgot he had just put salt in it; he went to the street to buy something and forgot it on the counter after paying for it… …”. This kind of “turning around and forgetting”, which is called instant forgetting, is an important feature of early memory impairment in Alzheimer’s patients, and this kind of forgetting is “total and complete”, i.e., the forgotten thing can never be remembered, as if it had never been heard or done. Wang, sitting next to her daughter, was 71 years old, her hair was thin and white, her body was hard, and she was smiling, listening to her daughter’s story as if nothing had happened. After listening to her daughter, I said, “Damsel, now I want to tell you three things, please listen carefully and remember. Because I’m going to ask you to repeat it back to me after I say it, okay? She smiled at me and nodded her head. I then said clearly: the flag, the tree, and the ball. I asked her to repeat it, but after scratching her ears for a moment, she only said “tree branch”. After I repeated the above three things to her, I asked her what she was uncomfortable with …… and asked her to repeat the above three things after about 2-3 minutes, and she embarrassingly said, “How can I remember these? As expected, she couldn’t say any of them. In order to further clarify the diagnosis, I applied the Simple Intelligence Mental State Examination Scale to test her six cognitive functions such as orientation and memory, and the result was 14 points. At this point, I explained to her daughter that the scale scores 30 points, with 17 points for illiterate people, 20 points for elementary school and 24 points for secondary school and above. Your mother graduated from junior high school with a score of 14, which is sufficient to diagnose Alzheimer’s disease, and it is estimated to be more than 2 to 3 years old. “Ah, my mother has a poor memory for at least 4~5 years, we see that she is physically fine without any disease, plus she still remembers very well what happened more than 10 years ago, and always thinks that the momentary poor memory is related to the slow reflection of people in old age ……” said Ms. Wang, chagrined. “Yes, the relatively good retention of distant memory (things that happened years ago) is also one of the characteristics of memory loss in Alzheimer’s disease. In addition, there are also varying degrees of recent forgetfulness, such as not remembering what you had for breakfast in the afternoon or forgetting all about a familiar person who came to the house yesterday to talk about something.” I went on to explain. Ms. Wang kept nodding her head and said, “Yes, my mother is in this situation, and we often have no choice but to tell her that the person who just came was so-and-so after the guest has left. The main difference between Alzheimer’s disease and physiological (recession) amnesia is that although the latter may forget something, such as a few hours or two or three days ago, or occasionally “turn around and forget”, but a little prompted by others or the person may still remember, compared to the former, this amnesia is “partial or incomplete.” In view of this, all elderly people who often have instantaneous forgetfulness (such as the article said ‘just put down the phone and forget who is calling’, etc.) must be alert to whether it is an early symptom of Alzheimer’s disease. You can follow the simple and easy methods described in this article to test yourself, and if necessary, see a neuropsychiatrist as soon as possible. The disease has been treated with special medication, early diagnosis and treatment will be more effective, so do not miss the early golden treatment time.