A Hunter-Gatherer’s Guide to the 21st Century by Heather Heying and Bret Weinstein explores the conflict between human evolutionary biology and the rapid changes of modern life. The book identifies "hyper-novelty"—the accelerating pace of technological and social change—as a major source of contemporary physical and mental health issues. For more details, visit Penguin Random House . The Hunter-Gatherer's Guide to the 21st Century