Is it true that bedtime snacks make you fat, and grilled meat can cause cancer? Can you diagnose a stroke with three quick questions? Are your elder siblings really smarter than you? In this deck of 48 Knowledge Cards, Anahad O’Connor—author of the popular New York Times column Really? and the book Never Shower in a Thunderstorm—explores these questions and more in a lively Q&A format. The front of each card presents a popular belief about food, exercise, an ailment, a folk remedy, or another timely health topic; the back provides a thoughtful, well-researched response. Informative and entertaining, Never Wake a Sleepwalker . . . Really? tackles today’s medical mysteries and separates fact from fiction, with a healthy dose of humor.