This is the podcast I mentioned in the first lecture, about Kathrine Switzer running the Boston Marathon in 1967. It's an episode of ESPN's really excellent "30 for 30" podcast.

There's also this video interview with Kathrine Switzer herself, which ads really powerful details to what I explained in lecture. She beautifully explains how powerful it can be (and feel) to work hard in athletic competition. Or even just to do well at something really hard!