Health psychology is a field of psychology that focuses on how biological, psychological, and social factors affect an individual's physical health and overall well-being. This includes studying the impact of behaviors, emotions, and attitudes on health outcomes, as well as developing interventions to promote healthy behavior change and improve health outcomes. Health psychologists work in a variety of settings, including hospitals, clinics, universities, and private practice, to help individuals manage chronic illnesses, adopt healthier lifestyles, and cope with the psychological aspects of illness and injury.