The word jade comes from the jade bird. The male of this bird is bright red and the female is bright green, which is called kingfisher. Because the jadeite produced in nature is mostly green and red, the word "jadeite" has gradually changed from bird to jade. The color of jadeite is natural and changeable, and it is integrated with nature, representing the vitality and youthful vitality of all things, and is deeply loved by the oriental nation, especially the Chinese nation. The ancients regarded jade as a treasure and regarded it as a precious ornament. Ancient medical books said that "jade is the beauty of stone, sweet and non-toxic", and that jade is the most abundant substance in human body. Therefore, jade is not only used as jade locks, jade fingers, bracelets, anklets, hanging chains, snuff bottles, decorations and decorations, but also used for health preservation and fitness. Modern science and technology show that jade contains trace elements beneficial to human body, such as zinc, magnesium, copper, chromium and manganese. Wearing jade regularly can make human skin absorb trace elements, which is helpful to the coordination and balance of physiological functions of human organs. Some jade has the physical characteristics of absorbing light during the day and emitting light at night. When the jade spot is aimed at a certain point in the human body, it can stimulate the meridians and dredge the viscera, which has obvious health care function. There is a "pension hole" on the back of the old man's wrist. Wearing jade bracelets can play the role of massage and health care, which can not only improve the symptoms of blurred vision of the elderly, but also store vitality and nourish the spirit. The oral cavity contains jade. With the help of the synergistic effect of the nutrients contained in saliva and lysozyme, it is helpful to promote fluid production to quench thirst, remove stomach heat, relieve annoyance, nourish the heart and lungs, moisten the throat and raise hair, and store qi to nourish the mind.