Health psychology interventions can be carried out within primary or secondary prevention services (Hallas, 2007). Health psychologists design and deliver cognitive-behavioral interventions with individual patients and groups to change health behaviors. Health behaviors refer to the actions and behaviors of an individual person, group and/or organization. For example, when a person is stressed at work, this could be attributed to the person's coping strategies, but it could also be related to the decision-making behavior of the manager, which would be the organization in this case (Kok and Schaalma, 2007). The category of health behaviors includes seeking medical services, following medical diets, and self-directed behaviors such as nutrition, physical activity, smoking, and alcohol consumption (Marks et al., 2015 ). All of these behaviors are generally divided into health-enhancing and health-damaging behaviors (Bennett, Conner, & Godin, 2007). How an individual behaves in relation to their health can determine the outcome of the disease. Say no to plagiarism. Get a tailor-made essay on “Why Violent Video Games Should Not Be Banned”? Get an original essay Additionally, behavior management is a key factor in preventing and treating chronic diseases (Matarazzto, 1982). The behaviors of chronic patients contribute to their adaptation to the consequences of the illness and to pain management (Stanton, Revensons & Tennen, 2007). This highlights the relevance of behavior management and change in a person's health and wellbeing. Health psychologists must understand and respond to changes in psychological and behavioral processes related to illness and health care. Changing the behavior of patients and healthcare professionals can benefit the healthcare system (Kaplan, 1990) and should be one of the primary goals of health psychology. Training in health psychology for health professionals. HPs are also employed to train other healthcare professionals so that they can better understand the psychological impact of illness and treatment and improve professional-patient communication (Gatchel & Oort, 2003). Knowledge areas that HPs might teach may include the biopsychosocial model of health, statistics and research methods, and behavioral theories and techniques. change (Winefield, 2007). They can also use their expertise in intervention design and implementation to help other healthcare professionals deliver interventions and develop their own designs (Hallas, 2007). In more applied settings, health psychologists can train skills such as communication and interviewing, treatment adherence, promoting a healthy lifestyle, and managing workplace stress for healthcare professionals. health. Another important element in professional training is the supervision of a health professional. psychologists to other people trained to be one of them (Horn, 2007). Supervision involves an exchange of information between the supervisor and the trainee. The supervisor must identify the needs of the trainee and guide him in the right way to understand, experience and reflect on the knowledge acquired (Miville et al., 2014). Health psychologists can also use their knowledge of statistics and research to participate in health projects..