Health is the level of functional or metabolic efficiency of a living
being.
In humans,
it is the general condition of a person's
mind, body and spirit, usually meaning to be free from illness, injury or pain (as in “good health” or “healthy”).
The World Health
Organization (WHO)
defined health in its broader sense in 1946 as "a state of complete
physical, mental, and social well-being and not merely the absence of disease
or infirmity." Although
this definition has been subject to controversy, in particular as having a lack
of operational value and the problem created by use of the word
"complete", it remains the most enduring.
Classification systems such as the WHO Family of
International Classifications, including the International Classification of Functioning, Disability and Health (ICF) and the International
Classification of Diseases (ICD),
are commonly used to define and measure the components of health.
The maintenance and promotion of health is achieved through
different combination of physical, mental, and social well-being, together sometimes referred to
as the “health triangle”.The
WHO's 1986 Ottawa Charter
for Health Promotion furthered
that health is not just a state, but also "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."
Systematic
activities to prevent or cure health problems and promote good health in humans
are delivered by health care providers. Applications with
regard to animal health are covered by the veterinary sciences. The term
"healthy" is also widely used in the context of many types of
non-living organizations and their impacts for the benefit of humans, such as
in the sense of healthy
communities, healthy cities or healthy environments. In addition to health
care interventions and a person's surroundings, a number of other factors are
known to influence the health status of individuals, including their
background, lifestyle, and economic and social conditions; these are referred
to as "determinants of health".Reference : Wikipedia
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