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Does schizophrenia have a genetic basis?

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What evidence is there that schizophrenia has a genetic basis?

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Discusses and provides an article on the evidence supporting the view that schizophrenia has a genetic basis.

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Let's take a closer look. I also attached an infromative document on the environmental causes, which are thought to trigger those who have a genetic predisposition to schizophrenia. I also added links for other articles to read.

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1. What evidence is there that schizophrenia has a genetic basis?

There is a general consensus that there is a strong genetic component to schizophrenia. This is based on empirical evidence such as:

- There is a schizophrenia gene(s): Those who have immediate relatives with a history of schizophrenia or other psychiatric diseases (for example, schizoaffective disorder, bipolar disorder, depression, etc) have a significantly increased risk for developing schizophrenia over that of the general population.

- Genes interact with triggers in the environment: Twin studies have shown that simple genetic transmission is far from the whole story - if one identical twin has schizophrenia, the risk for the other twin (who has the ...

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