Depressed patients often have symptoms such as low mood, loss of interest and pleasure, slow thinking, reduced will activity, etc., and in the case of severe symptoms even if the patient listens in, it will not work. Specifically as follows: 1. Depressed mood: patients feel depressed, worried, depressed, a kind of days like years, life is worse than death, claiming that “not happy”, “life is meaningless” and so on. The tone of the mood is low and gray. Low mood is more serious in the morning. 2. Negative cognition: there are often “three no” symptoms, namely, hopelessness (uncertainty, pessimism and hopelessness, thinking that work, family and health will be unfortunate), helplessness (feeling of isolation and helplessness, thinking that the treatment is useless), uselessness (life is worthless, they are useless). Serious self-injury or suicidal concepts or behaviors may occur. 3. Lack of interest: a significant decrease or even loss of interest in various activities previously enjoyed. For example, people who love to play soccer have no interest in the game. 4. Slow thinking: slow thinking association speed, slow reaction, closed thinking, self-conscious stupid. The performance of active speech is reduced, slow speech, low voice, and in severe cases, it is difficult to answer and communicate. 5. Decreased volitional activity: manifested as slow action, passive life, lazy, do not want to do things, do not interact, often sit alone, do not go out to avoid socializing. Serious can develop into no language, no movement, no food, wooden stiffness, that is, “depressive stiffness”. It should be reminded that, for patients with depression, non-professional advice is not very useful, it is recommended to go to the hospital for standardized treatment, so as not to delay the condition, resulting in adverse consequences.