Mentally ill have 7 general types...first heriditary (scizos), second lack of coping mechanisms resulting in non main stream response and behavior (depresssion) third hormonal imbalance (usually people prone to fits) fourth organic (usually due to head injuries), fifth anti social personality disorder (the argument nurture nature belongs here, also zealous in nature likes to break laws, addiction behaviour) sixth congenital (born at birth for example mental retardation down syndeome) seventh unexplained (usually possesed)...is she a mental health professional, maybe a counsellor or a psychologist who always assume they know everything, cos I have not heard of her