In the six years since the Manual for the Use of Human Body was completed, Wu Qingzhong devoted himself, as always, to the study of Chinese medicine. After How to Use the Human Body, he further studied the subject of "Human Body Repair Project". As he said in the preface: "The Manual for People was completed in 2002, that is, six years ago. In the past six years, I met several good teachers and learned a lot of new things. My health and that of my family are also improving. The recovery process of the human body is the most important experience in the past six years. I am not a doctor. My research is just the experience of health preservation, and everyone can do it by themselves. "