Health is defined in a variety of ways. The traditional medical model defines health as Choose...the absence of diseasea state of complete well-beingliving as long as possiblehaving the smallest risk for heart disease. In contrast to the traditional medical model, the World Health Organization (WHO) defines health as "a complete state of physical, mental, and social well-being and not merely the absence of disease or infirmity." The WHO model is the basis for the holistic or wellness model of health, which encompasses the physiological, mental, emotional, social, spiritual, and environmental aspects of individuals and communities. The holistic and environmental models are similar in that they consider Choose...the prevalence of major diseasesthe cost of medical carethe number of available doctors and hospitalsthe effects of the social and physical environment on personal health. Among the dimensions of wellness, the Choose...emotionalintellectualspiritualsocial dimension involves having a mind open to new ideas and concepts, such as those that lead to health and well-being. Adopting the holistic wellness model means that health is attained by preventing personal illness, adopting personal health behaviors to promote well-being, and seeking medical care when ill. In general this means practicing health behaviors that reduce the risk of Choose...chroniclifestyleinfectiousdrug-related diseases. Of the 1) health belief, 2) transtheoretical, 3) disease reduction, and 4) cost containment models, the two that try to explain how individuals change health behaviors are Choose...1 and 21 and 31 and 42 and 4.