The course will be based on the original text of “HuangDi NeiJing”. While synthesizing the discussion of ancient and modern physicians, it will also combine the actual life and clinical application to explain the connotation and practical methods of health-preservation in the "Nei Jing". The main contents include: the health-preserving thought in the "Neijing", the practical significance of the health-preserving thought in the "Neijing", and the influence of the health-preserving thought in the "Neijing" on later generations.