Ancient Greeks believed imbalances in
"bodily fluids" caused abnormality, while people living during the middle ages believed it was caused by
"the devil". however, many contemporary psychologists try to understand psychological disorders in terms of the
"biopsychosocial" model.
Abnormal psychology is the division of psychology that reviews bizarre examples of conduct, feeling etc., which could possibly be comprehended as accelerating a psychological issue. Albeit numerous practices could be considered as abnormal, this branch of psychology for the most part manages conduct in a clinical setting.