“If you''ve been looking for something different to level up your health, fitness, and personal growth, this is it.”—Melissa Urban, Whole30 CEO and New York Times bestselling authorDiscover the evolutionary mind and body benefits of living at the edges of your comfort zone and reconnecting with the wild.In many ways, we’re more comfortable than ever beforeBut could our sheltered, temperature-controlled, overfed, underchallenged lives actually be the leading cause of many our most urgent physical and mental health issues? In this gripping investigation, award-winning journalist Michael Easter seeks out off-the-grid visionaries, disruptive genius researchers, and mind-body conditioning trailblazers who are unlocking the life-enhancing secrets of a counterintuitive solution: discomfort. Easter’s journey to understand our evolutionary need to be challenged takes him to meet the NBA’s top exercise scientist, who uses an ancient Japanese practice to build championship athletes; to the mystic