Hygiene is the practice of keeping yourself and your surroundings clean to stay healthy and prevent disease. It includes habits like washing hands, brushing teeth, and bathing regularly.
From French "hygiène," from Greek "hygieinos" meaning "good for health," related to "Hygeia," the Greek goddess of health. The word grew as science connected cleanliness with disease prevention.
Good hygiene is like invisible armor—you rarely notice it when it works, but you definitely notice when it’s missing. Modern life expectancy massively jumped not just from fancy medicine, but from simple hygiene like clean water and handwashing.
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