Do you know your crazy? | Bryant McBride | TEDxWalden Pond

It's April 18th, 2011, and I'm almost to the top of Heartbreak Hill, the biggest challenge in the Boston Marathon. I'm running with five friends, and frankly, we're in trouble. I had run 25 marathons, which I know is a little crazy, but never before with an Achilles track club athlete.Achilles is this amazing organization that makes running accessible to everyone. My friend Julius had lost his eyesight due to a degenerative eye disease, but he was a runner and he missed it. He missed being out there.He miss ...