Dr. Bret Weinstein is an evolutionary biologist, podcaster, and author. He is the author, along with his wife, fellow biologist Dr. Heather Heying, of "A Hunter-Gatherer's Guide to the 21st Century: Evolution and the Challenges of Modern Life." Together, they are the co-hosts of "The DarkHorse Podcast." www.bretweinstein.net Learn more about your ad choices. Visit podcastchoices.com/adchoices