The meaning of health has evolved over time. In accordance with the biomedical perspective, early definitions of health devoted to the theme of the bodys ability to function, health is seen as a state of normal functioning, which may be interrupted from time to time due to illness. An example of such a definition of health: "a state characterized by anatomical, physiological and psychological integrity, ability to perform personally valued family, work and social roles, ability to cope with physical, biological, psychological and social stresses." Then, in 1948, in a radical departure from previous definitions, the world health organization who proposed a definition of aiming high: the links between health and wellbeing in terms of "physical, mental and social wellbeing and not merely the absence of disease or infirmity". Although this definition was seen by some as an innovation, it was also criticized as being vague, overly broad and is not regarded as measurable. For a long time, he was assigned as an impractical ideal and most discussions of health returned to the practicality of the biomedical model. How did the transition from viewing disease as a state to think about it as a process, the same shift happened in definitions of health. Again, who played a leading role when it contributed to the development of the movement for health promotion in the 1980-ies. It brought in a new concept of health, not condition, but in dynamic terms of resiliency, in other words, as the "source of life". 1984, who made changes in the definition of "health" is defined as "the degree to which the individual or group is able to realize aspirations and satisfy needs and change or cope with the environment. Health is a resource for everyday life, not the objective of living, a positive concept emphasizing social and personal resources as well as physical capabilities". Thus, health means the ability to maintain homeostasis and recover from insults. Mental, intellectual, emotional, and social health referred to a persons ability to cope with stress, to acquire skills to maintain relationships that form the resources for fault tolerance, and independent living. This opens up many opportunities for health to teach, strengthen, and learned. From the end 1970-x of years, the Federal healthy people initiative has been a noticeable component of the US approach to improve the health status of the population. Every decade, a new version of healthy people is issued with the new objectives and identification of themes and measurable objectives to improve health over the next ten years, with the assessment at this stage of the progress or lack thereof. Progress was limited for many purposes, which leads to concerns about the effectiveness of healthy people in shaping the results in the context of a decentralized and uncoordinated system of health care. Healthy people 2020 gives more attention to health promotion and preventive approaches and puts emphasis on the importance of addressing the social determinants of health. New advanced digital interface facilitates use and dissemination, not bulky printed books as produced in the past. The impact of these changes on healthy individuals will be identified in the coming years. Systematic activities to prevent or cure health problems and maintaining health in humans are undertaken by medical workers. Application to animal health are covered by the veterinary Sciences. The term "healthy" is also widely used context many types non-living organizations and their impacts for the benefit of man, for example, in the sense of healthy communities, Healthy cities or healthy environment. In addition to medical care and persons surroundings, a number of other factors known to affect the health status of individuals, including their background, lifestyle, economic, social conditions, and spirituality, they are called "health factors". Studies have shown that high levels of stress can affect human health. In the first decade of the 21st century conceptualization of health as ability opened the door for self-assessment, to become the main indicators to judge the effectiveness of efforts to improve human health. It also created the opportunity for each person to feel healthy, even with multiple chronic diseases or terminal condition, and re-examination of the determinants of health, away from the traditional approach aimed at reducing the burden of disease.
