Psychology is the scientific study of humans and animals. Psychology is a natural and social science that includes research, practical and creative applications. Psychology covers a wide range of topics ranging from the way our social environment influences the individual, to the inner workings of the body with particular attention to brain function.Psychologists teach, conduct research, and provide clinical treatment for people of all ages who are experiencing psychological difficulties. In addition, psychologists might work with business and governmental agencies to improve productivity in the workplace environment, or study how attitudes and prejudices develop, and how they influence human behavior.