The mysterious science of pain

In 1995, the British Medical Journal published a report about a builder who accidentally jumped onto a nail, which pierced straight through his steel-toed boot. He was in such agonizing pain that any movement was unbearable. But when the doctors took off his boot, they discovered that the nail had never touched his foot at all. What's going on? Joshua W. Pate investigates the experience of pain. [Directed by Artrake Studio, narrated by Addison Anderson].