Obstacle immunity became a kind of obsession for Mark Webb after attempting, and failing, the Death Race for the third time. First he overhauled his mental toughness, and next his physical, then came redemption and the iconic finisher's skull. His growth as a human became all too obvious after he lost his leg below the knee in a freak motorcycle accident. Just days before the accident he completed a Spartan Sprint with his young son. In retrospect, these races seemed like a dress rehearsal by comparison, but by now Webb was well tooled to take on the next challenge with grace and an indomitable spirit.Watch the video episode at http://spartanuppodcast.com   Lessons:1. You can’t quit life. You only get one shot at it so you must keep going.2. You can’t stop doing the things you love in life because there is risk. 3. Recognize that you will have days that you don’t want to do your workout so just do a small amount and more often than not you will achieve your goal.4. Aim as high as you can for a goal and then chip away with small increments.  Panel Notes:Joe Desena: How would you do if you lost a limb? Would you be upset? Would you get angry? Could you just roll with what life throws your way? Mark and I saw each other just a day before he had a tragic accident.  This guy is more twisted steel than a Harley Davidson. If he doesn't give you inspiration, I don't know what will.Col. Nye: The student becomes the teacher.  You can’t quit life.  Positive mindset and the injury give him motivation to set and achieve new goals. Sefra Alexandra:  What is obstacle immunity? Are you born with it or is it learned? Neuroplasticity refers to neural pathways (how information is transmitted through your body) and how they change due to behavior, thinking, or bodily injury.  Was it Mark’s history of overcoming adversity in training and races that has fortified him with such heroic resolve and resiliency in the face of a life-changing incident?