Hygiene refers to collective life hygiene and production hygiene. Generally speaking, it refers to personal and social health measures taken to improve human health, prevent diseases, and improve and create a production environment and living conditions that meet physiological and psychological needs, including patriotic health campaigns centered on eliminating diseases and stressing hygiene. According to the research of medical history, "health" is a medical term, which means "keeping healthy". This word first appeared in Lingshu, and there is also a word "health preservation" in Zhuangzi Gengsang Chu: "Nan Rong said: I really want to know the classics of health preservation." Others believe that the word "health" comes from Greek mythology. "Hygiene" refers to myth.

The word "hygiene" now refers to paying attention to cleanliness and hygiene; Prevention of diseases; Good for health.

"Hygiene" is a verb-object phrase in terms of composition. Life is a noun, that is, life or body; "Wei" is a verb, that is, "defend". The compound words of "Wei" and "Sheng" originally mean "maintaining life" or "protecting the body". When "hygiene" is used as a noun, its meaning is changed to "the act of saving life or protecting the body" or "all measures taken to save life or protect the body", including all measures taken to prevent and treat diseases and maintain and improve health. In modern Chinese, "health" is also used as an adjective, meaning "clean" and "clean", which is one of the measures to keep healthy.