Yang Chang-soon (F) is a psychiatrist and neurologist. She graduated from the College of Medicine at Yonsei University and received her PhD at the graduate school of the same university. She received her second PhD, with a dissertation grafting the taching of Book of Changes (or Zhouyi in Chinese) and Psychology from Sungkyunkwan University. She has held the positions of research lecturer at Yonsei University Health System, visiting professor for psychology at Habor-UCLA Medical Center in the USA and Vice President of Seoul Baekje Hospital. At present, she is CEO of Mind & Company: Dr Yang's Psychiatric Clinic for people wanting to form healthy human relationships. She is also a clinical professor of Psychiatry at Yonsei University's College of Medicine, and international member and Distinguished Fellow of the American Psychiatric Association.