Early manifestations of common mental disorders Psychosis is a class of functional disorders of the brain of unknown cause, the early onset is often highlighted in the sensory, perceptual, attention, memory, thinking, behavior and other aspects of mental activity abnormalities, common symptoms and performance of the following points. 1, sleep disorders: good or bad sleep is a barometer of changes in the condition of psychiatric patients, for the early onset of the signal, mainly manifested as difficulty in falling asleep, easy to wake up, dreamy and early awakening, and most of them have no obvious reasons, no painful experience, and will not actively seek medical attention. 2.Sensitivity and suspicion: It is characterized by heavy suspicion, especially sensitive to the words and actions of others, and if you see others meeting and talking, you think they are talking about you; if you have some physical discomfort, you suspect that you are being controlled by advanced instruments or you think you are suffering from some incurable disease, and it is difficult to explain. 3, emotional perversion: manifested as unexplained mood swings, originally cheerful, love to make friends, become worried all day; mild character, become easy to lose temper, often because of trivial matters and rage; quiet character becomes excited and lively, nosy, anxious and nervous, crying and laughing for no reason. 4.Personality change: change the style of the past, gradually become aloof, solitary and isolated; or uninterested in the surrounding things, depressed, alone, cold to others, distant from friends and relatives; or lazy life, unkempt; or lax labor discipline, work dragging; or reckless spending, profligate. 5, abnormal behavior: for the external manifestation of mental activities, easy to be found, its main manifestations are strange behavior, increased or delayed movement, standing and sitting, making faces, squinting, etc.