In this episode of Talk Nerdy, Cara is joined by mathematician and former NFL player, John Urschel. They talk about his passion for mathematics, including his current work as a doctoral candidate at MIT and his new book, "Mind and Matter: A Life in Math and Football." They also discuss his love of football, motivations for retiring from the sport, and the painful reality of chronic traumatic encephalopathy (CTE). Follow John: @JohnCUrschel.
