The most important manifestation of depression is low mood, which is often referred to as depressive mood. But is it necessarily depression if you have a depressed mood? The answer is no. Human beings have complex and diverse emotions, and our Chinese medicine also believes that human beings are an extremely complex organism, with all seven emotions and six desires. The “seven emotions” are the changes in human emotions of happiness, anger, sadness, pity, fear and fear. Everyone has these seven emotions, and people who do not experience these emotions may instead have “psychosomatic” problems. Among them, “worry” means “melancholy”, “depression”, which is also a normal and common human emotional experience, which includes sadness, shame, pain and other internal experiences. Depression can be experienced by normal people, but generally speaking, it is infrequent, mild and short-lived (usually lasting less than two weeks). Moreover, as the social environment improves, the depressed mood will also improve accordingly. For example, if someone has an argument with his or her partner or is criticized by the leader for a few words, depressed mood can occur, but it can usually be adjusted in a short period of time. Only a few people have difficulty getting out of depression with repeated efforts due to their personality, genetics and overly dramatic stressful events, such as not feeling happy even when they encounter happy things, slowly developing increasing sleep problems, difficulty falling asleep, waking up very early in the morning and not being able to fall asleep again. Reluctance to be active, reluctance to communicate with others, reduced active speech, reluctance to do activities that used to interest them, and nothing that makes them happy, including eating, going out, seeing friends, engaging in sports, etc. In short, few things are enjoyable, and many patients feel very distressed by this. They feel that their energy has diminished, their concentration and memory are not as good as before, their thinking is inactive or difficult, they often blame themselves, deny themselves, and cry a lot; they lose their appetite and often their weight. The diagnosis of depression can be considered if many of the above symptoms persist for more than two weeks, while the depressed mood significantly affects the individual’s social life and daily work and life. When suffering from depression, patients seem to enter an emotional dead end; they tend to initiate fewer words, speak in a softer voice, and move more slowly. Patients with severe depression are very depressed, they constantly blame themselves, deny themselves, always think in a negative way, their thoughts do not match the reality of the objective environment, always think that something bad will happen to them in the future, and they are powerless to change the tragic end of these things. In addition, people with depression usually also experience significant anxiety, and many depressed people feel restless and distracted. This anxiety is very unbearable, and it adds to the pain within the depressed person. Many patients experience significantly negative thoughts or behaviors, and even take the initiative to end their precious lives. There are also a significant number of depressed patients who are not obviously depressed and irritable, but feel various physical discomforts. Many patients feel one or many unbearable pains in their bodies, such as unexplained pain, fatigue, urgency in the throat and chest, constipation, indigestion, flatulence, palpitations, shortness of breath, etc., but after repeated examinations by medical and surgical doctors, and even repeated examinations by various laboratory or expensive instruments, nothing abnormal can be checked. Many patients go around for medical treatment, but often do not get a final diagnosis, spend a lot of money, take a lot of drugs, but the disease is not relieved. I do not know that these are also common manifestations of depression.