Why do most researchers consider schizophrenia a brain disorder? what evidence suggests that schizophrenia could begin in the womb?

Researches had found some evidences that this disease starts from the womb. Using stem cells, researchers observed the formation of early-stage neurons and identified key changes common among schizophrenic patients. Hope this answers the question.

Adescription of  congestive heart  failure, its symptoms, risk factors, and treatment. to the  heart muscle  other than by artery or blood  flow  problems; signs of  heart  failure may not  meanthe patient has  heart  failure and they quit alcohol, or at least consume alcohol within the national recommended  limits.