Depression is a negative emotion. Today’s society is becoming increasingly competitive and almost everyone is on overload, it is easy to develop different kinds of depression, which is a very common emotional component. Commonly, there is anxiety depression, which is still a reasonable response; in addition, there is an irrational response, including depressive disorder, depressive malaise, etc. From the energy viewpoint, anxious depression refers to an individual’s chronic anxiety, which means that the individual faces a problem or stress and tries to solve the problem with thoughts, but the problem is never solved or the individual cannot let go and reduce the thoughts. This can cause continuous nervous tension without being able to relax effectively, along with the continuous energy consumption, the individual will often feel tired and naturally appear depressed mood. Next, what are the manifestations of depressive disorder? Depressive disorder manifests with significant and persistent depressed mood as a clinical characteristic, clinical manifestations can range from sullenness to grief, patients will show symptoms such as low mood, loss of interest or pleasure, low energy or fatigue, and some patients will feel that their thinking has become slower. These symptoms show a decrease in energy, a slowing down of energy transmission or an inability to transmit. Most cases have a tendency to have recurrent episodes, with most episodes resolving with each episode, and some may have residual symptoms or become chronic. Depression is a common depressive disorder that presents as a single episode or recurrent episodes with a prolonged course. A proportion of patients are at risk of lifelong relapse, with varying residual symptoms between episodes. Look again at what is depressive woodiness? If people see depressive wood stiffness they may be surprised. So what does depressive wood stiffness present as? Xylopia refers to a complete suppression of motor behavior and verbal activity. It is characterized by the patient’s inability to speak, move, drink, or eat, increased muscle tone, fixed facial expressions, lack of response to stimuli, often maintaining a fixed posture, and even urinary and fecal retention. In milder cases, the patient may show little speech, little movement, dull expression, and can eat and defecate on his own when no one is around, which is called submute state. If it is caused by severe depressive episodes, it is called depressive wood stiffness. In depressive lignocrania, the patient is conscious and has normal life functioning, but exhibits a basic cessation of energy transmission required for active mental and physical activity. From anxiety depression to depressive disorder and then to depressive lignocaine, energy transfer shows a gradual slowing down. With anxiety depression, energy is normal, but the individual feels tired, overloaded, and unpleasant; with depressive disorder, energy transmission slows down and the individual feels less energetic and does not want to move, but still wants to move; and with depressive wood stiffness, the individual shows little or no movement. The relationship between the degree of depression and energy, whether the gradual slowing down of energy transmission leads to the gradual increase of depression or the increase of depression shows a decrease of energy, this phenomenon, needs to be further observed. Although depression is a negative emotion, to some extent, depression can also be understood as a process in which the organism passively reduces consumption and waits for energy recovery.