The document discusses concepts related to health, disease, and prevention. It defines health using the WHO definition of complete physical, mental and social well-being. It describes positive health and the good health triad. Determinants of health are defined as predisposing factors that influence community health, including host factors like age and genetics, and environmental factors. Risk factors are attributes associated with disease development. The document outlines dimensions of health and wellness, and defines disease using the epidemiological triad of agent, host, and environment. It describes the natural history of disease and levels of prevention from primordial to treatment. Gordon's 1987 classification system for preventive interventions is also mentioned.