This is still a more reliable health care method. Verbs can also be nouns. It originally refers to a medical activity to maintain life, enhance physical fitness and prevent diseases through various methods, thus prolonging life. Raise, that is, the meaning of nursed back to health, maintenance and tonic; Life means living, surviving and growing. In the modern sense, "health preservation" refers to the active physical and mental maintenance activities for material and spirit according to the laws of human life process.

Maintenance refers to following the law of life, through moderate exercise, plus external nursing and other means, so that the body function and external skin can be conditioned and restored to their proper functions.