Lung governs qi and regulates breathing; The lung governs the dispersing and descending, and the lung governs the journey of water; The lungs open in the nose and the skin closes in the body, and its brilliance lies in the hair.

1. The lungs lead to the nose. The nose is the portal of the lung, the passage of gas in and out, and has the functions of ventilation and smell control, which are maintained by the function of lung gas. When the lung-qi function is harmonious, the ventilation function of the nose is normal. Have a keen sense of smell.

2. The lung is combined with the skin in the body, and its flowers are in the hair. Hair, including skin, sweat glands, hair and other tissues, is a whole surface, relying on the warmth and moisture of qi and body fluid to become a barrier against the invasion of foreign evils. The combination of lung and fur means that lung can transport body fluid, spread and defend qi in fur, make skin moist and dense, and enhance the ability to resist external evil.