What is schizophrenia?What are the main signs and symptoms of schizophrenia?How is schizophrenia diagnosed?What are some of the main medical treatments for schizophrenia?Have any supplements been studied for schizophrenia?How could diet affect schizophrenia?Are there any other treatments for schizophrenia?What causes schizophrenia?What’s the difference between positive and negative symptoms?Is schizophrenia the same as psychosis?What are the DSM-5 criteria for schizophrenia?What are the ICD-11 criteria for schizophrenia?