Schizophrenia

Schizophrenia is a serious mental illness that affects how a person thinks, feels, and behaves. People with schizophrenia may seem like they have lost touch with reality, which can be distressing for them and for their family and friends. The symptoms of schizophrenia can make it difficult to participate in usual, everyday activities, but effective treatments are available. Many people who receive treatment can engage in school or work, achieve independence, and enjoy personal relationships.

What are the risk factors for schizophrenia?

Several factors may contribute to a person’s risk of developing schizophrenia.

Genetics: Schizophrenia sometimes runs in families. However, just because one family member has schizophrenia, it does not mean that other members of the family also will have it. Studies suggest that many different genes may increase a person’s chances of developing schizophrenia, but that no single gene causes the disorder by itself.

Environment: Research suggests that a combination of genetic factors and aspects of a person’s environment and life experiences may play a role in the development of schizophrenia. These environmental factors that may include living in poverty, stressful or dangerous surroundings, and exposure to viruses or nutritional problems before birth.

Brain structure and function: Research shows that people with schizophrenia may be more likely to have differences in the size of certain brain areas and in connections between brain areas. Some of these brain differences may develop before birth. Researchers are working to better understand how brain structure and function may relate to schizophrenia.