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Schizophrenia is a mental disorder characterized by continuous or relapsing episodes of psychosis.
Major symptoms include hallucinations (typically hearing voices), delusions, paranoia, and disorganized thinking. Other symptoms include social withdrawal, decreased emotional expression, and apathy.
There are five subtypes of schizophrenia: paranoid schizophrenia, disorganized schizophrenia, catatonic schizophrenia, undifferentiated schizophrenia, and residual schizophrenia.
Environmental factors: oxygen deprivation, infection, prenatal maternal stress, and malnutrition in the mother during prenatal development.
Genetic factors: having a first-degree relative with the disease, oxidative DNA damage, genomic disorders.
1% of the population (2.2 million Americans) will develop schizophrenia.
Schizophrenia typically appears when a person is in his or her teens to early 20s.
About 10% of people with schizophrenia commit suicide and are more likely to have a drug or alcohol abuse problem.
Most people with schizophrenia prefer to be left alone and are not violent.