A psychologist is someone who studies and practices psychology as a job. Psychologists study the human mind and behavior. They study human perceptions, emotions, and personality relationships. A psychologist helps people overcome mental health issues without the use of drugs. The most common use of modern psychological practice id CBT or cognitive behavioural therapy. Psychology is the study of the mind, partly through studying behaviour and grounding the observations in science. The goal of Psychology is to gain an understanding of individuals, groups and relationships and how certain personality traits can influence the outcome of any given situation. Psychology tries to gain an understanding of mental functions in an individuals social behaviors, while also exploring the physiological and neurological processes that influence certain functions and behaviours.