Seeing a still-warm human heart, beating just minutes ago, sliced up takes some getting used to. For journalist Charles Morris as he observes a heart transplant, this is just another shock in his year-long stay with a team of top heart surgeons at a New York hospital. His admiration for the medics is clear. Their skill, training and concentration have saved thousands of lives. And yet there is something eerie about this book, a hint of a horror movie. The physicians perform near miracles as they work on patients suspended between life and death by machines and clever tricks. But the cultural value of the heart is such that, fleetingly, there is the impression that surgeons are removing more than just flesh. Morris’ descriptions convey the urgency and precision of heat surgery. He also reveals the contrasts: the delicate manipulation of tiny vessels around the heart during a by-pass operation and the sheer physical effort required to saw through the chest bone and later ratch...