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Causes »
Schizophrenia is a complex illness. Even experts in the field are not sure what causes it. Some doctors think that the brain may not be able to process information correctly.
Genetic factors appear to play a role. People who have family members with schizophrenia may be more likely to get the disease themselves.
Some researchers believe that events in a person's environment may trigger schizophrenia. For example, problems (infection) during development in the mother's womb and at birth may increase the risk for developing schizophrenia later in life.
Psychological and social factors may also affect its development. However, the level of social and family support appears to affect the course of illness and may protect against the condition returning.
http://health.nytimes.com/health/guides ... rview.html