DrGulzar Ahmed Laskar-Munna

Health, according to the World Health Organization, is "a state of complete physical, mental and social well-being and not merely the absence of disease and infirmity". A variety of definitions have been used for different purposes over time.

In simple terms, health refers to a person's physical, emotional and psychological well-being. Hygiene refers to good practices that prevent disease and lead to good health, especially cleanliness, proper disposal of wastewater and drinking water supply.

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