On The Gist, L. Jon Wertheim from Sports Illustrated explains the effects of sports on the brain. With Sam Sommers, he’s the author of This Is Your Brain on Sports. For the Spiel, Mike addresses his white male brethren. Today’s sponsors: Texture, the mobile app that lets you tap directly into the world’s most popular magazines using your phone or tablet. Dive deeper into Vogue, People, Esquire, Time—with interactive content for a richer reading experience. Try Texture for free at Texture.com/gist. Betterment, the largest automated investing service—managing billions of dollars for people just like you. Get up to six months of investing free when you go to Betterment.com/gist.  Join Slate Plus! Members get bonus segments, exclusive member-only podcasts, and more. Sign up for a free trial today at slate.com/gistplus.Learn more about your ad choices. Visit megaphone.fm/adchoices