Imagine a disease that warps and petrifies the flesh, transforming normal skin into bark-like growths that slowly consume the hands and feet. Commonly known as "tree man disease," Epidermodysplasia Verruciformis (EV) is one of the rarest medical conditions in the world, yet the extreme, deformative nature of the disease continues to intrigue media consumers around the world. In this episode of Stuff to Blow Your Mind, Robert and Christian explore the science of EV, it's links to Human Papillomavirus and why we can't look away.