hygiene, science of preserving and promoting the health of both the individual and the community. It has many aspects: personal hygiene (proper living habits, cleanliness of body and clothing, healthful diet, a balanced regimen of rest and exercise); domestic hygiene (sanitary preparation of food, cleanliness, and ventilation of the home); public hygiene (supervision of water and food supply, containment of communicable disease, disposal of garbage and sewage, control of air and water pollution); industrial hygiene (measures that minimize occupational disease and accident); and mental hygiene (recognition of mental and emotional factors in healthful living). The World Health Organization promotes hygienic practices on an international level.
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