WHO definition of Health

Health is a state of complete physical, mental and social well-being

and not merely the absence of disease or infirmity.

(Gesundheit ist der Zustand des völligen körperlichen, seelischen und sozialen Wohlbefindens

und nicht nur das Freisein von Krankheit oder Schwäche.)

The correct bibliographic citation for the definition is:

Preamble to the Constitution of the World Health Organization as adopted by the International Health Conference, New York, 19-22 June, 1946; signed on 22 July 1946 by the representatives of 61 States (Official Records of the World Health Organization, no. 2, p. 100) and entered into force on 7 April 1948.

The Definition has not been amended since 1948.