Improving the understanding of safe-sex behaviours with the use of two models in Health Psychology

Abstract

Health psychology, which is a branch of psychology, aims to understand human health (wellbeing, illnesses, and vulnerabilities) from a biopsychosocial perspective that takes the biological, psychological, and social aspects of life into consideration. This sub-discipline broadly emphases its role in health promotion and maintenance of health, prevention and treatment of illness, detection and focus on causes of illnesses, and overall improvement of the health care system. Health psychologists utilise a broad range of psychological theories and models developed within the sub-discipline for the above functions. This paper outlines how two theoretical models in Health Psychology, the Transtheoretical Model (TTM), and the Health Belief Model (HBM), contribute to the understanding of safe-sex behaviours. Unplanned pregnancies and sexually transmitted diseases are noticeable problems around the globe. Almost one million adolescent women aged 19 or under become pregnant each year in the USA alone (Ventura & Freedman, 2000), and the number of adolescents acquiring sexually transmitted infections (STI), including Human Immunodeficiency Virus (HIV), approximates to 3.5 million (Chambers, & Rew, 2003). In the UK the number of new diagnoses for STIs has increased from 63% over the last ten years (Health Protection Agency, 2008). In relation to homosexual relationships, there is still a high incidence of unsafe sex, mainly in the form of unprotected anal intercourse, despite the long number of years of health promotion and education aimed at this population (Crossley, 2000).