After a long break, Derek comes back just in time for Christmas. This time he sits down with Henry Jay Przybylo, (Dr. Jay), to discuss his new book 'Counting Backwards'. Dr. Jay is an associate professor of anesthesiology at Northwestern University School of Medicine, specializing in infants and children. The book is his 'Doctor's Notes on Anesthesia', find out more about one of the great mysteries of modern medicine.