We are living through the most prosperous age in all of human history, yet people are more listless, divided and miserable than ever. For evolutionary biologists Heather Heying and Bret Weinstein, the cause of our woes is clear: the modern world is out of sync with our ancient brains and bodies. We evolved to live in clans, but today most people don’t even know their neighbors’ names. The cognitive dissonance spawned by trying to live in a society we’re not built for is killing us. In this book, Heying and Weinstein cut through the politically fraught discourse surrounding issues like sex, gender, diet, parenting, sleep, education, and more to outline a provocative, science-based worldview that will empower you to live a better, wiser life.