능률교육(이찬승 저) 실용영어1 4과 2차시 Host: I have a kind of funny question. What happens if you don’t sleep for a long time? Dr.Z: Actually, I have the perfect example for you. Once, an American high school student managed to stay awake for 264 hours, breaking the previous record of 260 hours. But he had some disturbing psychological problems along the way. He saw things that didn’t exist by the forth day, ..