In No Laughing Matter, the novelist Joseph Heller outed his friend Mel Brooks as a world-class hypochondriac. “He is the only person I’m acquainted with who subscribes to The Lancet,” Heller wrote. “Principles of Internal Medicine and Dorland’s Medical Dictionary are Mother Goose to him.” I grew up in a two-doctor home strewn with medical curiosities. Among my childhood toys were plastic models of inner ears, femurs, and gastrointestinal tracts. Every day, our postman delivered a stack of medical journals dense with text broken up by gruesome clinical photographs. Every morning while eating my Cheerios, I used the magazines as placemats, read the articles absentmindedly, and stole glances at repulsive skin conditions. When I left home to travel, the memory of those photographs kept me feeling healthy. When… More…