After these exhaustive searches, researchers identified a plethora of genes that might be related to psychiatric disorders, but they found almost no genes that confer significant risk to a significant portion of the people with the disorders. Some very rare genes were identified that can confer high levels of risk, but for most people with mental disorders, specific genes don’t confer large amounts of risk. On top of that, the vast majority of genes that have been found are not specific to individual disorders. Instead, they confer risk for many different psychiatric, metabolic, and
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