What is the root of winter pulse?

Winter pulse is right, rhizome is kidney pulse. Winter pulse first refers to the pulse condition between beginning of winter and beginning of spring. During this period, because the sun is south of the earth's equator, the northern hemisphere receives the least light, and everything is in a collection state. People's physiological and psychological phenomena will inevitably be affected by this, forming the same state and trend as other things. In particular, the reproductive system of the human body, that is, the kidney system in Chinese medicine, is in a particularly favorable state of recuperation. Secondly, the collected kidney qi state is manifested in the pulse condition, that is, sinking to pulse. Sinking means that the pulse condition is not on the surface and the feeling is sinking under the skin. Beating means that when the finger is pressed down, you can feel the pulse formed by kidney qi and feel the finger beating. Ancient philosophers called this healthy kidney pulse winter pulse and autumn pulse. If a soldier is in a barracks, he is not in a state of sleep, but in a state of normal training and combat readiness. On the contrary, different winter pulse is the disease pulse.