 Again, the WHO played a leading role when it fostered the development of the health promotion movement in the 1980s.This brought in a new conception of health, not as a state, but in dynamic terms of resiliency, in other words, as "a resource for living".1984 WHO revised the definition of health defined it as "the extent to which an individual or group is able to realize aspirations and satisfy needs and to change or cope with the environment.