You-Lin Tain graduated from China Medical University, Taiwan, with an M.D. degree in 1992. He later received his residency training in pediatrics and fellow training in pediatric nephrology at Chang Gung Memorial Hospital (CGMH), Taiwan. From 1999 to 2002, Tain worked as an attending pediatrician at Kaohsiung CGMH, Taiwan. At the same time, he attained a master’s degree in Biomedicine at Chang Gung University, Taiwan. In 2003, he went to the U.S. with a pre-doctoral fellowship award from his hospital. In 2007, Tain graduated from the University of Florida, Graduate School of Medicine, with a Ph.D. in Physiology. Later, he returned to Taiwan and worked at the Kaohsiung CGMH. Presently, he is a professor of pediatrics at the Kaohsiung CGMH and Chang Gung University College of Medicine, a physician–scientist, and the Director of the Department of Medical Research and Development, Kaohsiung CGMH, Taiwan. His research interests include nitric oxide, free radical medicine, chronic kidney disease, DOHaD, and hypertension.