The five elements of human body are the bases of five flavors, five colors, five hours, five tones and five senses, which constitute the five elements system of human body. The theory of five elements, based on the observation of natural phenomena, concludes that nature consists of five elements, namely, wood, fire, earth, gold and water, which are also the driving forces of nature, and they are related: the concept of five elements, namely, wood is the source of fire, earth is the source of gold, water is the source of gold and aquatic wood is the source of water. Besides being applicable to all kinds of things and natural phenomena, it is also applicable to human body and food. The five elements are used to replace the five internal organs and different parts of the body in traditional Chinese medicine. The physiological functions of these organs are interrelated, and the five senses are the essence of five colors (blue, red, yellow, white and black) from (liver, heart, spleen, lung and kidney), which is the normal reproductive color of viscera. The characteristics of Ze, the five-color changes of human body can reflect the changes of five internal organs. Blue enters the liver, and the liver and gallbladder are in the exterior; Red enters the heart, and the heart and small intestine are on the surface; C color enters the spleen, and the spleen and lungs are in the exterior; White enters the lungs, and the lungs and large intestine are on the surface; Black enters the kidney, and the kidney and bladder are on the surface. Cyan can clear the liver and relieve depression, and red can clear the heart and play with fire; Yellow can strengthen the spleen and nourish the stomach; White can nourish lung yin; Black can tonify kidney and strengthen yang. The essence of kidney water is nourishing liver wood, which stores blood and helps heart fire. The blood of heart fire is warming spleen soil, spleen soil turns to grain to replenish lung gold, and lung gold drops to help kidney water. Wuse Qingru Liver consists of Lentinus edodes, Fructus Jujubae, Herba Menthae, Radix Bupleuri and Fructus Schisandrae Chinensis. Its functions and functions include relieving stress and fullness, hepatotoxicity, acute and chronic hepatitis, early cirrhosis and liver dysfunction. Five-color source red enters the heart and is made of jujube, hawthorn, perilla seed, cassia seed and ginger. Function: patients with hyperlipidemia, fatty liver, cardiovascular and cerebrovascular diseases and prone people. The five-color source yellow enters the spleen, and consists of Radix Codonopsis, Fructus Aurantii Immaturus, Atractylodis Rhizoma, and Massa Medicata Fermentata. Its function is to strengthen spleen and stimulate appetite, and it can be used for spleen and stomach weakness, wrist abdominal distension, anorexia, constipation and dyspepsia. The five-color source of white entering the lung is composed of lily, lotus seed, loquat leaf, almond and licorice. Its functions are: clearing away lung heat, relieving cough and reducing adverse reactions. Used for asthma due to qi deficiency, cough due to lung heat, chronic tracheitis, etc. Black with five colors enters the kidney through the combination of Mulberry, Schisandra chinensis, Lycium barbarum, leek seeds and cinnamon, and has the successful functions of tonifying kidney and strengthening yang, invigorating qi and nourishing blood, regulating endocrine, enhancing immunity, resisting fatigue and resisting aging. Five elements, five colors, five internal organs, five qi, five senses, five flavors, wood, green liver, wind, eye muscle, red heart, summer heat, tongue pulse, bitter soil, yellow spleen, wet mouth, sweet gold, white lung, dry nose coating, pungent water, black kidney, cold ear and salty bone. The theory of five elements classifies things according to the characteristics of five elements, and compares the properties and functions of various things and phenomena in nature with the characteristics of five elements, and classifies them into five elements respectively. Nature, that is, these five kinds.