Studies have found that 65%-90% of human illnesses are related to feelings of psychological depression. Eighty-five percent of the elderly have more or less different degrees of psychological problems. For the elderly, aging emotion is an important aspect in the formation of psychological depression. Aging emotion is a special psycho-neurological reaction of the elderly to various changes, which varies from person to person and is complex and variable, and seriously interferes with and damages the physiological functions and disease prevention ability of the elderly and affects the functions of neurological, immune, endocrine and other systems, thus accelerating the occurrence and development of aging and geriatric diseases. First, there are three general factors affecting the mental health of the elderly. 1. Aging and disease: After the age of 60, people will cause a series of physiological and psychological degenerative changes, physical strength and memory will gradually decline. This normal aging change makes the elderly inevitably have the feeling of “powerlessness”, and bring some physical discomfort and pain. Elderly people, especially those in their senior years, may even fear that “death is coming” and seek medication indiscriminately. If disease is added to the aging process, some elderly people will become sad, worried and fearful. 2, mental trauma: After retirement, the elderly will face various unavoidable changes, such as the death of old companions and friends, physical aging, health deterioration, etc.. Mental trauma has an important impact on the quality of life, health and disease treatment of the elderly, some elderly people are in pain and grief, which will be detrimental to their health over time. 3.Environmental changes: The most common is the sudden changes in the surrounding environment, as well as the influence of social and family interpersonal relationships, which is often not easy for the elderly to adapt to, thus accelerating the aging process. Second, how can the elderly maintain a good physical and mental state? 1.Be open-minded and happy with what you have. In long-term medical practice, it is found that long-lived elderly people are often cheerful, enthusiastic and understanding, and they feel that they are living a full and satisfying life. 2.Face the reality and get out of the misunderstanding. As the elderly themselves, they should correct their mindset, accept the reality, no matter what difficulties they encounter, they must have a realistic and positive attitude towards life, care for themselves, relieve themselves and try to maintain a psychological balance. Older people should actively and moderately participate in some social activities and develop a wide range of interests. When people are old, they have more free time, so they can take this opportunity to learn more things, cultivate a variety of interests and hobbies, in order to cultivate sentiment, deal with all aspects of interpersonal relations, so that they can have fun with the crowd, like to be “urchins”. 3.Make friends and talk often. Older people will inevitably encounter some unpleasant things, often in the soulmate friends to vent their frustration, mutual comfort, exchange wistful, help to relax, to maintain mental balance plays an important role.