SA: In addition to applying psychological principles to physical health care, identify some other functions of health psychology that involve interaction with biological and sociological factors. Explain briefly how biological, psychological, and sociological factors contribute to health outcomes, and how this relates to a health psychology goal.

A. Functions of health psychology include:
1. Helping to identify conditions that affect health
2. Helping to diagnose some chronic diseases
3. Helping to treat certain chronic diseases
4. Helping to accomplish physiological and psychological rehabilitation by changing the behaviors these involve
B. Health psychology interacts with biological and sociological aspects of health in fulfilling the above functions.
C. Biological factors are the only factors directly contributing to physiological health and illness.
D. Psychological and sociological factors contribute indirectly to physical health and illness.
1. For these factors to affect biological processes, they must "get under the skin," i.e. exert some biological influence, or be manifested biologically.
E. Identifying the pathways whereby psychological and sociological factors come to affect biological health and disease processes is a goal of health psychology.