John's final football coaching job was at Purdue University, where he and Marcia met professors Eric Nauman and Tom Talavadge. The duo had just finished a groundbreaking study on micro concussions by working with a high school football team in Indiana, and our hosts were blown away with what the research showed - so much so that it in many ways led to John losing his job. In the first of two parts, the Shoops discuss with Nauman and Talavadge what their research discovered. (Music featured