What does mental disorder mean?

Mental disorder refers to a disorder in brain activity, with different disorders in behavior, emotion, cognition, and will. The more common ones are emotional mental disorders and organic brain mental disorders. There are many causes of the disease, including genetic reasons, individual characteristics, social and cultural reasons, and organic pathological reasons. There are also many symptoms that lead to mental disorders in patients.

Causes 1. Biological factors (internal factors) 1. Genetics Genetic factors are one of the most important pathogenic factors, but they are not the only factors, nor are they definitely single-gene inheritance. It is generally believed that the interaction of multiple genes increases the "risk" or possibility of mental disorders. Take schizophrenia as an example. Even among identical twins, the concordance rate is less than 50%. The lifetime prevalence rate for normal people is about 1%, while the lifetime prevalence rate for family members of schizophrenia patients is only about 10%. 2. Central nervous system infection and trauma

Common mental disorders

1. Schizophrenia

Schizophrenia is a common mental illness with unknown etiology. It is characterized by multiple disorders in perception, thinking, emotion, will and behavior, and is characterized by incoordination of mental activities or detachment from reality. Usually consciousness is clear and intelligence is intact, but some cognitive impairment may occur.

2. Paranoid disorder delusion: a pathological thinking that is detached from reality. Its characteristics are: First, reasoning is based on unfounded assumptions, which violates logical thinking and cannot lead to conclusions that are in line with reality. Second, they firmly believe in absurd conclusions and cannot correct them through knowledge education through presenting facts and reasoning or through their own personal experience.

3. Phobia Fear refers to the emotional response and avoidance behavior that occurs when facing an unfavorable or dangerous situation. It is more common in phobias, anxiety disorders, mental disorders associated with physical diseases, and organic mental disorders. 4. Alzheimer’s disease

Alzheimer's disease often begins in old age or early old age, with dementia as the main manifestation. Memory impairment is the first symptom of this disease, such as frequent loss of items, forgetting promised things, and speaking in a long-winded and repetitive manner.