The balance of yin and yang in the human body refers to the coordination and balance between the various components of the internal organs, meridians, qi and blood, as well as between the human body and the external environment. Yin Yang balance is an important foundation for human health. Once the body loses balance, a series of pathological reactions and symptoms will occur.
Firstly, the five organs and six fu organs are the key to the balance of yin and yang in the human body. The five organs include the heart, liver, spleen, lungs, and kidneys, while the six organs include the small intestine, gallbladder, stomach, large intestine, bladder, and triple energizer. The five internal organs store essence and qi, and the six internal organs transmit chemicals. The five zangs control the internal organs and the six zangs control the external organs, which are interconnected through meridians and maintain normal physiological functions of the human body. Among them, the heart governs the blood vessels and the gods; The liver is responsible for relieving stress and regulating muscles and veins; The spleen is responsible for transportation and metabolism, and for muscles; The lungs govern qi and fur; The kidney is responsible for storing essence, while the bone is responsible for generating marrow. The functions of these organs are interdependent and mutually restrictive, maintaining the balance of the body.
人体阴阳平衡是指机体内部五脏六腑、经络、气血等各个组成部分之间，以及人体与外界环境之间相互协调、平衡的状态。阴阳平衡是人体健康的重要基础，一旦机体失去平衡，就会出现一系列病理反应和症状。

首先，五脏六腑是人体阴阳平衡的关键。五脏包括心、肝、脾、肺、肾，六腑包括小肠、胆、胃、大肠、膀胱和三焦。五脏藏精气，六腑传化物。五脏主内，六腑主外，通过经络相互联系，维持着人体的正常生理功能。其中，心主血脉，主神明；肝主疏泄，主筋脉；脾主运化，主肌肉；肺主气，主皮毛；肾主藏精，主骨生髓。这些脏腑的功能相互依存，彼此制约，维持着机体的平衡。