What is Wei Qi in Chinese medicine? What's the use?

Defending qi, the fierce qi produced by Shui Gu's diet, runs outside the pulse, and has the functions of warming skin, regulating muscles, opening and closing sweat pores, protecting muscle surface and resisting external evils.

Defending qi refers to the function of defending the immune system and excluding all kinds of foreign bodies, including body barrier, phagocytic cell system, humoral immunity and cellular immunity.