Mental health | Mental illness: symptoms and Types Mental illness : when the person changes the Behavior and confuse to thinking, and take stress or depression, the disorder of the brain that manifests in positive, negative, cognitive and affective symptoms. symptoms : · cognitive angels in thinking · emotion or behaviour include depression · anxiety disorders · Obsessive Compulsive Disorders · eating disorders · addictive behaviours · Using drugs and Alcohol more than feel normal · confuse to thinking · Hearing voice symptoms of mental disorder also called a mental illness or psychiatric disorder Which affects about 400 million people, dementia which affects about 35 million, and schizophrenia, which affects about 21 million people globally. Common type: · Schizophrenia · Obsessive Compulsive Disorders · Bipolar Affective Disorder Schizophrenia Schizophreni