There are various reasons for memory loss, so first of all, we need to identify the causes of memory loss and treat the symptoms in order to receive results. Patients with psychiatric disorders often suffer from memory loss due to lack of concentration when remembering; elderly people mostly suffer from brain cell damage caused by organic brain diseases, which affects the memory retention process and causes memory loss. It is a natural and normal phenomenon that the memory of elderly people decreases at a very slow rate with the aging of various organs in the body. To delay memory decline and enhance memory, the most important thing is not to lose confidence in your memory, adopt an active and healthy lifestyle, usually live, study, work, eat, sleep and exercise regularly; put items in a relatively fixed location, put them back after use, and for some important things you can take a record with a pen to develop good habits. At the same time, pay attention to dietary regimen, timely and appropriate amount of protein, vitamins and other nutrients, and quit smoking, alcohol and other bad habits. If an elderly person develops memory impairment gradually but quickly, especially if the recent memory loss is obvious, attention should be paid to exclude Alzheimer’s disease, and he/she should go to the relevant department such as neurology clinic for a comprehensive examination. For elderly patients with “cognitive impairment”, the cause should be actively investigated and the progress of the disease should be slowed down by improving brain circulation and brain metabolism. The causes of memory loss in young people are different from those in the elderly, and those caused by diseases are very few. It is not difficult to solve the problem of memory loss caused by such factors. The key is to adopt an active and healthy lifestyle, to live regularly in general; to properly self-regulate, to maintain an optimistic mood and positive attitude, especially in the face of stressful events in life, to learn to reduce stress and maintain physical and mental health. In conclusion, memory loss is a common clinical symptom, most of which are functional or physiological changes, so there is no need to worry too much. For long time or gradually worsening memory loss, you should seek the help of a specialist for a clear diagnosis and symptomatic treatment.