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 science-based worldview that will empower you to live a better， wiser life。 They distill more than 20 years of research and first-hand accounts from the most biodiverse ecosystems on Earth into straightforward principles and guidance for confronting our culture of hyper-novelty。

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。 Differences between the sexes once served a necessary evolutionary purpose， but today many dismiss the concept of biological sex as offensive。 The cognitive dissonance spawned by trying to live in a society we're not built for is killing us。