Jade contains many trace elements beneficial to human body, such as zinc, copper, iron, manganese, magnesium, cobalt, selenium, chromium, nickel, lithium, calcium, potassium, sodium, tin and titanium. Shennong's Herbal Classic: "Jade is the beauty of stone, sweet and flat, and non-toxic." It is believed that jade absorption, with the help of saliva and its synergistic effect, "can promote fluid production to quench thirst, remove stomach heat, calm vexed qi, nourish the heart and lungs, moisten the throat and grow hair". Even after the death of the emperor, jade is still in his mouth or wears jade clothes to protect his body. Li Shizhen, a medical scientist in Ming Dynasty, wrote in Compendium of Materia Medica: "Metaphysics is also another name for jade. It's easy to take, so it's not good to take Zhen Xuan (jade). " He also said: "Jade pieces are made of jade. It smells sweet and nontoxic. Indications for removing stomach heat, dyspnea, thirst quenching, beans and other debris. If you take it for a long time, you will be healthy for many years. It can moisten the heart and lungs, help the voice moisten the throat and nourish the hair. Nourish the five internal organs and stop fidgety. Gold, silver and Ophiopogon japonicus are beneficial. " This shows that jade has been used as medicine since ancient times, and it has played a very good role in treating diseases and protecting health.

The health-preserving mechanism of jade has been confirmed by modern science. Jade can produce a special "photoelectric effect", concentrate energy storage and form an "electromagnetic field" that resonates with the human body, thus making various physiological functions work more harmoniously. At the same time, some jade also has the wonderful physical characteristics of absorbing light during the day and emitting light at night. When the light spot is aimed at a certain point in the human body, it stimulates the meridians like acupuncture. If you wear a jade bracelet, long-term benign massage can not only get rid of the blurred vision of the elderly, but also store vitality and nourish the spirit. Trace elements contained in jade are inhaled into human body through skin, which can balance the imbalance of Yin and Yang, qi and blood, make people get rid of diseases, protect health and prolong life. From the pharmaceutical point of view, long-term contact with jade can supplement the insufficient elements and trace elements in the human body, absorb or excrete the redundant elements and trace elements, and keep the human body unique and positive.