When it comes to endurance, do you think it's all in your head? Maybe with a little more mental power the body can achieve anything. Although your brain plays a crucial roll, the relationship between mind and body is what matters most when it comes to endurance, according to our next guest, an author, journalist and runner. Alex Hutchinson is the author of the book “Endure: Mind, Body and the Curiously Elastic Limits of Human Performance.” He started out as a middle/long-distance runner for the