Kwang Ik Yang currently works at the Sleep Disorders Center and Department of Neurology as professor and director in Soonchunhyang University Cheonan Hospital, Cheonan, Korea. He doctoriate from the graduate school in 2004. He was trained as a neurologist at Soonchunhyang University Hospital. He had worked as fellowship in Epilepsy program, Yonsei University Medical Center, Seoul, Korea (mentor, Byung In Lee) and research fellowship from July 2007 to December of 2008 in Sleep Disorders Center, Cleveland Clinic Foundation, Cleveland, OH, USA (mentor, Nancy Foldvary-Schaefer). He researches in neurology, epilepsy and sleep medicine. His current project is 'Sleep status and impact of Korean adolescent'. He is also active as a vice-president and academic director in KSRS and KSSM each.