First, the degree of depressed state of mind varies: it can range from mildly poor state of mind to sadness, pessimism and despair. Patients feel heavy, life is meaningless, happy, depressed, spending time like years, painful, can not allocate themselves. Some patients may also appear anxious, easily agitated, nervous and restless. Second, the self-evaluation is too low: depressed patients tend to excessively depreciate their own abilities, with a critical, negative and negative attitude to their present, past and future, this is not good, that is not right, to describe themselves as useless, the future is dark. Strong feelings of self-blame, guilt, uselessness, worthlessness, helplessness, and in severe cases, self-criminality and suspicion may appear. Loss of energy, fatigue and weakness: difficulty in washing, dressing and other trivial tasks of life, and inability to cope with them. Patients often describe their condition as “mental breakdown” or “deflated ball”. Loss of interest is one of the common symptoms of depressed patients: loss of enthusiasm and pleasure in life and work, and loss of interest in everything. The patient does not experience the joy of family, does not care about past hobbies, often lives alone behind closed doors, alienates friends and relatives, and avoids socializing. Patients often complain of “no feelings”, “emotional numbness”, “can’t be happy”. V. Negative pessimism: depressed patients are very painful, pessimistic, desperate, feel that life is a burden, not worth staying, to die for relief, may produce strong suicidal thoughts and behavior. Sixth, the patient is in a significant, persistent, generalized depressive state: attention difficulties, memory loss, slow brain, closed mind, slow action, but some patients show restlessness, anxiety, tension and agitation. VII. Somatic or biological symptoms: Depressed patients often have biological symptoms such as loss of appetite, weight loss, sleep disturbances, low sexual function and diurnal fluctuations in mood, which are common but not present in every case. Exercise for depression Exercise is an effective way to enhance physical fitness. Some studies have found that exercise, while strengthening metabolism, can relieve negative psychological energy and prevent depressive episodes; and exercise, while enhancing physical fitness, can produce positive psychological feelings and improve mood more quickly and eliminate depressive symptoms. 1, running: Some studies have proved that when people are running, the brain will secrete a lot of endorphins, also known as happy hormone or young hormone. It can make people feel joyful, happy and satisfied, which can help people dispel stress and melancholy. Running time to the evening is appropriate, the speed should be at least 120 steps per minute, the frequency for at least 3 times a week, each time a continuous run 30 to 50 minutes. 2, jump rope: on the one hand, jump rope can increase the coordination of the human body; on the other hand, because in the process of jumping rope, the head needs to move up and down quickly, can effectively strengthen the vestibular function. These can produce a good psychological feeling, improve self-confidence. Jump rope speed for 30 ~ 60 times per minute, once every other day, each time last 10 minutes. 3, walk: try to choose to walk in a beautiful, quiet environment, can improve cardiorespiratory function and improve oxygen uptake at the same time, make people feel happy. Start walking should adhere to the daily walk 1500 meters, and strive to walk in 15 minutes; later gradually increase the walking distance, until 45 minutes to walk 4500 meters. Whether people with depression tendency or healthy people should have to do more exercise so as to stay away from diseases and depression.