Prof. Han was born in 1928 in Hangzhou, a beautiful city in south China. He finished his medical training in Shanghai Medical College (1947-1952), and specialized as a physiologist in Dalian Medical College. He started his teaching and research career on medical physiology in Harbin Medical University (1953), and was appointed as a lecturer of physiology in the Beijing college of Traditional Chinese Medicine (1961). He joined Beijing Medical University in 1962, and was appointed as a full professor of physiology (1979-), Director of the Department of Physiology (1983-1993), then Director of Neuroscience Research Institute, and Director of the Key Laboratory of Neuroscience Research under the auspice of the Ministry of Health and the Ministry of Education, People’s Republic of China (1993-). In the same year of 1993, Professor Han was elected a member of the Chinese Academy of Sciences, the highest honor for scientists in China.