In "The Curious Case of Benjamin Button," a short story by F. Scott Fitzgerald and later a movie directed by David Fincher, the protagonist ages backwards: he’s born an old man and dies as a baby. It’s fiction, but for some young patients, the premise is not that farfetched. What happens when kids exhibit disorders more often seen in the elderly? Dr. Pavel Davizon-Castillo of Bloodworks Research Institute wants to find out.