Shocked: Adventures in Bringing Back the Recently Dead

As a young medical student, Dr. David Casarett was inspired by the story of a two-year-old girl named Michelle Funk. Michelle fell into a creek and was underwater for over an hour. When she was found she wasn’t breathing, and her pupils were fixed and dilated. But after three hours of persistent work, a team of doctors and nurses was able to bring her back.

If Michelle could come back after three hours of being dead, what about twelve hours? Or twenty-four? What would it take to revive someo...