AI: Edward Fuller Torrey puts forward two arguments against the genetic theory of schizophrenia: the failure to find any schizophrenia genes that have a large effect; and that schizophrenia is harmful to a person’s physical fitness, which contradicts the theory of evolution. Torrey also offers three possible explanations for why even genes with small effects still exist: evolution has not yet had time to get rid of them; schizophrenia genes have some positive advantage; each specific schizophrenia gene has its own countervailing advantage. Torrey suggests that if schizophrenia genes were beneficial for physical health or other aspects of life, this could have implications for future methods of selecting embryos early in development.
AI: Edward Fuller Torrey puts forward two arguments against the genetic theory of schizophrenia: the failure to find any schizophrenia genes that have a large effect; and that schizophrenia is harmful to a person’s physical fitness, which contradicts the theory of evolution. Torrey also offers three possible explanations for why even genes with small effects still exist: evolution has not yet had time to get rid of them; schizophrenia genes have some positive advantage; each specific schizophrenia gene has its own countervailing advantage. Torrey suggests that if schizophrenia genes were beneficial for physical health or other aspects of life, this could have implications for future methods of selecting embryos early in development.