I would like this essay to explain the complex reasons why someone becomes insane as well as defining when someone is consid

I would like this essay to explain the complex reasons why someone becomes insane as well as defining when someone is considered insane, why this may be considered, the events leading up to all conclusions of insanity, describing what someone feels, thinks and reacts when they are technically insane, and answering the big question “can a brain be fixed?” As can someone be reverted back to a natural human state after going insane. As well as including any other ethical questions about insanity and mental health in general.