Health and Human Development - What is Health?
_Health_ can be defined in many ways, depending on who is using the data
or how the data is used. It can relate to the biological causes of health
and ill health or it can focus upon the rates of death or morbidity, 
the rates of disease, disability and mortality  or, finally, to life
expectancy.  It can also concern social and emotional wellbeing, as
these in turn relate to quality of life.
So it depends on who we are and what our interest in health  is as to
how we see it. For this reason there are many aspects to the concept of
health. However, health is usually thought of as not only the absence of
disease but also the presence of complete physical, mental and social
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