Your assignment is to prepare and submit a paper on the concepts of health and the role of the nhs in keeping people healthy. NHS has played a major role in keeping people of UK healthy and continues to do so. In this essay, the role of NHS in the health of people of UK will be discussed with reference to various concepts, determinants and models of health and through a suitable example. Concepts of Health During its creation, the World Health Organization (WHO) in 1948 defined health as “a state of complete physical, mental, and social well-being and not merely the absence of disease or infirmity.” Critics argued the completeness of this definition and in 1986, in the Ottawa Charter for health Promotion, the WHO modified the definition of health and defined it as “a resource for everyday life, not the objective of living. Health is a positive concept emphasizing social and personal resources, as well as physical capacities.” Even this definition has not been accepted completely and thus several models of health have come up in an aim to provide complete definition of health. Examples of models of health are the biomedical model, biopsychosocial model and public health model. Biomedical model is a very primitive model of health and is considered as the most traditional model of health and illness.