Chinese medicine believes that the winter main "hiding" corresponds to the kidneys, and at this time the cold corresponds to the kidneys, and it is most likely to consume the yang qi of the kidneys. The yang qi of the kidneys is injured, and it is easy to have cold pain in the waist and knees, susceptible to wind chills, frequent urination at night, etc.
physique Nourish the kidneys Health Qi deficiency
12-18