Yang Jae Jin is a South Korean psychiatrist and TV personality. He graduated from Jeonju High School and later obtained a a bachelor's and a master's degree in Medicine and a specialization in Psychiatric Medicine, all from Ajou University. He has made several TV appearance as a mental health expert and has been the director of several clinics or hospitals since 2006. He is the older brother of Yang Jae Woong and both have appeared together as medical experts on variety shows, as radio MCs and have a joint Youtube channel called "Yang Bros' Mental World".
(Source: Korean = Namu Wiki)