Dr You has solid attainment in Chinese medicine theory as well as comprehensive and systematic skills for clinical diagnosis and treatment. He followed Professor Shan Zhaowei, Spleen/Stomach diseases specialist at the Jiangsu Provincial Chinese Medicine Hospital for many years. Dr You is good at the prevention and treatment of Spleen/Stomach conditions for the aged. In this seminar, he will introduce some important statements of Treatise on Spleen and Stomach by Li Dongyuan (1180-1251), and interpret their applications in modern Chinese herbal medicine practice by incorporating his own experience.