Psychology is used to study the mental processes and behavior of individuals, and differs from subjects such as biology, sociology, anthropology, economics, political science, and neuroscience in many ways. Mainly - and perhaps most importantly - it differs in that it is primarily concerned with not only the biological or neural processes, but more so with the interaction of mental processes and behavior and the overall processes of a system.
Psychology can be framed in terms of two particular theories: phenomenological and information processing. An understanding of the brain and its functions are also included in the psychological theory and practice, and the idea of psychology is connected with a vast amount of subjects in the general society of today.
Health psychology is similar to basic psychology in many ways, but the differences are more crucial; it is the use of psychological principles to promote health and prevent illness. Health psychology seriously considers the biological, cognitive, behavioral, emotional, social, psychosomatic and environmental factors and how they relate to health and illness. The objective of this form of psychology is to determine the connections between psychological factors and how they relate to a person's health.
There are specific behaviors which may lead a person to illness, ...