“The Shanggu Tianzhen Lun in the Classic of Internal Medicine states: ‘When a woman is seven years old, her kidney qi is strong, and her teeth grow more; at twenty-seven, Tian Gui arrives, the Ren meridian is open, the Tai Chong meridian is strong, and menstruation occurs on time. Therefore, menstruation is due to strong kidney qi, the arrival of Tian Gui, the opening of the Ren meridian, the strength of the Tai Chong meridian, and the coordinated action of viscera, blood and meridians on the uterus, which stores and releases regularly, resulting in menstruation.’ ”,However, Li Yuan's answer made the male doctor with a Mediterranean hairstyle beside Director Tang very happy. He smiled and said, "That's right, our working class is still the most glorious! Li Yuan, I remember you came to our rolling mill through the donation program in 1954 Back then, you were still a rural household registration. After you came to the factory, you took the vocational high school exam",That unfinished shell of a house from my previous life!!。