Radiolab - Limits

I first listened to this podcast a few weeks ago while I was racing towards Flagstaff for work. And I hadn't really thought about it much until this afternoon when I started considering my own personal limits. Not only my physical limits, but also my capacity to deal with things mentally and emotionally. That introspection brought up some interesting questions about how, or why, those boundaries are created. Are they physiological? Or are they simply determined by the individual?

Give it a listen the next time you're driving to nowhere, or sitting at home searching for motivation. The stories will surely change your perspective on what you think is possible, and will probably make you want to push further into the red-zone the next time you're gettin' after it.