Health psychology is a growing field that applies psychological principles to health and healthcare. It focuses on understanding how biological, psychological, behavioral, and social factors influence health and illness. Health psychologists work in various healthcare settings to promote wellness, prevent and treat illness, and improve healthcare systems. Some key areas of focus include relationships between lifestyle/behavior and health, the stress-illness link, social support and health, and personality/behavior influences on health. Homoeopathy also recognizes the mind-body connection and treats the whole person rather than just symptoms.