Psychology is the study of human mind and behavior in a scientific manner. The major things which are of utmost importance are the factors which affect the behavior. Psychology also refers to the mental characteristics or the attitude of a person or a society. Human psychology depends upon the nature of choices made during building up of a relationship. A person who studies psychology is called a psychologist. These may be of different types depending on the nature of psychological study. These are classified as social, behavioral and cognitive psychologists. They tend to understand human behavior in concern with the choices they make while getting into a relationship. The from BookMyEssay is really worthy in such cases.