1. Personality: Due to the innate physiological basis of the human brain, people who are introverted, thoughtful, self-demanding or have a high degree of inferiority are prone to psychological abnormalities, which are generally manifested as sensitive, suspicious, jealous or paranoid psychosis.
2. Physiology: When acetylcholine, norepinephrine, dopamine and other substances in the central neurotransmitter in the body are abnormal, it will lead to endocrine disorders and easily show psychological obstacles, such as hyperactivity, mental abnormality, inattention and emotional instability.
3. Social environment: Usually, when people are in noisy environment, overcrowded space or under great social pressure, they are prone to fidgety, unresponsiveness, fear, anxiety and even mental disorders.
To sum up, there are many manifestations of mental disorders, and the initial manifestations are often anxiety, depression, depression, mental tension or fear, irritability. In severe cases, there are even abnormal psychological manifestations such as psychopathy, pessimism and despair. Patients need to adjust themselves and solve or vent their bad emotions through their favorite activities such as talking, traveling, reading, listening to music and fishing. If necessary, targeted treatment can be carried out under the guidance of a psychologist.