Sang Lee, MD is a prolific writer and famous TV personality all over South Korea. He is popularly known among Koreans as the "Endorphin Doctor". He introduced the hormone endorphin (the happy hormone) to the Korean TV viewers in his lectures broadcasted by major national TV stations such as KBS and SBS. He conducts lectures, seminars and workshops in several countries such as USA, Germany, Australia, Poland and Brazil. His life-giving and highly entertaining yet informative lectures never cease to captivate his audiences from all ages and different ethnic origins. The moment he starts his lectures the listeners are held spellbound by his uncanny style in public speaking. His lectures are scientifically based as well as rooted deeply in the Bible truths.