Studies of monozygotic and dizygotic twins suggest that schizophrenia

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Studies of twin pairs have consistently shown that monozygotic twins (who share 100% of their genes) are more likely to both have schizophrenia than dizygotic twins (who share 50% of their genes), indicating a strong genetic component to the disorder. However, environmental factors also play a role in the development of schizophrenia, as not all monozygotic twins will both develop the disorder. Therefore, while genetic factors greatly influence the risk of developing schizophrenia, it is not solely caused by genetics.

Studies of Monozygotic and Dizygotic Twins Suggest That Schizophrenia