The simplest symptom of yin and yang deficiency is fear of cold and fear of heat, kidney yin is the lack of material, kidney yang is the lack of functionality, the lack of material is the soreness of the waist and knees, dizziness, and if in the body of the young people appeared to be premature ejaculation, spermatorrhea, as well as the appearance of the five heart heat, insomnia, heartburn, traditional Chinese medicine has a Yin Yin Yin deficiency born of internal heat, Yang Yang Yin deficiency born of external cold, if in the old people appeared in the Yin Yin Yin deficiency will be prone to hair loss or gray hair earlier, easy to ringing ears, back of the ears, loose teeth, blurred eyes earlier, so, this is the Yin Yin deficiency. The young and middle-aged people have a reduced libido, impotence, and often feel a sense of fatigue, because it is functional, more reflective

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