Toddlers hold the secrets to having more fun and living a fulfilling life. In the first book to offer adults important lessons that can be gleaned from toddlers— as backed by science—a Harvard-trained physician helps us rediscover what we once knew. Terrible twos, temper tantrums, and grocery store meltdowns are usually the first things that come to mind when people think of toddlers. But pediatric emergency medicine physician and researcher Dr. Hasan Merali has long thought toddlers are among the best people in our society and adults could do well to learn from them. They can teach us how to: Lose weight naturally Sleep better Build stronger friendships Improve teamwork Be more productive Have more fun, and Live a more fulfilling life Hasan Merali, MD, MPH, is an associate professor in the Department of Pediatrics, McMaster University and a pediatric emergency medicine physician at McMaster Children’s Hospital in Hamilton, Ontario. He received his medical degree from Harvard Medical School and Master of Public Health degree from Johns Hopkins University. His research focuses on child injury prevention in low- and middle-income countries. He has published more than twenty-five peer-reviewed journal articles and his writing has been featured in Science, the Boston Globe, NBC, CBC, and Popular Science. Dr. Merali lives in Oakville, Ontario with his wife and their toddler daughter.