Sherwin Nuland — The Biology of the Spirit

Dr. Sherwin Nuland died this week at the age of 83. He became well-known for his first book, "How We Die," which won the National Book Award. For him, pondering death was a way of wondering at life — and the infinite variety of processes that maintain human life moment to moment. He reflects on the meaning of life by way of scrupulous and elegant detail about human physiology.