The definition of ' health' according to World Health Organisation is: "Health is a state of complete physical, mental and social well-being and not merely the absence of disease or infirmity."
This definition is entered into force on 7 April 1948 has not been amended since 1948.
Complete health is achieved through a combination of physical, mental, emotional, and social well-being.
Physical well-being is the result of physical fitness achieved by proper nutrition and diet, proper physical exercise and proper rest and sleep.
The general indicator of the good health of a population is their growth in height and weight, their resistance to diseases and the quality of their life.
Mental and emotional well being is achieved first by being physically healthy and secondly by the availability of circumstances for the use and development of emotional and cognitive capabilities.
The social well-being of a population is by the availability of the ordinary demands of everyday life.
These demands include the proper environment, open places in urban areas, health clinics, health education and care of the infirm and the diseased.