1. THE DIAGNOSIS OF A DEPRESSIVE EPISODE including a sadness of mood, a psychomotor slowing syndrome and instinctive disorders evolving for at least 15 days and inducing clinically significant distress or impairment in social or other important functioning. 1.1. Depressive Syndrome It combines a clinical triad, often with an insidious onset. 1.1.1. Depressed mood A sad mood There is a feeling of sadness, which can vary from the exaggeration of a normal feeling of sadness to moral pain. The sadness is apparent, persistent and sometimes inconsolable. It may be replaced by dysphoria, which is a feeling of boredom associated with an irritable mood. A loss of interest and pleasure Sadness can be replaced by or coexist with a general feeling of weariness and disinterest, often leading to an experience of helplessness and guilt. There is also an inability to feel pleasure in usually pleasant activities: this is depressive anhedonia which can affect, in severe forms, affectionate feelings: this is affective anesthesia. A negative view of oneself, the world and the future The vision of self is negative : feelings of inferiority, incapacity and uselessness, sometimes with ideas of helplessness and guilt. The world view and relationships with those around them are also negative. The vision of the future is reduced to only pessimistic potentialities. Pessimism, anhedonia, disinterest and discouragement can lead to a disgust with life, sometimes leading to suicidal thoughts. 1.1.2. Psychomotor slowing Engine slowdown He experiences bradykinesia which results in hypomimia and a reduction in gestural punctuation of speech. Everything in the subject's attitude seems slow: slow walking.
1.1.3. Instinctual disorders Sleeping troubles Insomnia late nightis the most evocative (early awakening). It can also be insomnia falling asleep, in the middle of the night, or mixed. Hypersomnia is possible,but more rare Appetite disorders Anorexia , more frequent, may be accompanied by weight loss. The increase appetiteis rarer. Sexual disorders Sexual disinterest with reduced desire in both sexes. Erectile dysfunction in men and orgasm problems in women. 1.1.4. Associated symptoms Anxiety Anxiety is often present in depression and leaves a specific mark on it: dysphoric mood, motor instability, insomnia when falling asleep. Somatic symptoms In addition to asthenia, various pains, including headaches, may be reported, as well as digestive and genitourinary symptoms. Character disorders Sometimes, the depressive picture combines either regression and passivity or hostility and intolerance to those around them (noise, requests, etc.).