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Human health is a state of complete physical, mental and social well-being and not merely the absence of disease or infirmity

The sciences that study health include: hygiene, dietetics, pharmacology, biology, epidemiology, psychology (health psychology, developmental psychology, experimental and clinical psychology, social psychology), psychophysiology, psychiatry, pediatrics, medical sociology and medical anthropology, psychohygiene, defectology and others

Protection of human health (health care) is one of the functions of the state. On a global scale, the protection of human health is the responsibility of the World Health Organization.