Superior Athletes on Instagram: "Imagine running 135 miles through Death Valley in July with broken bones in your feet. That's what David Goggins faced at the 2007 Badwater Ultramarathon. Already injured from a previous race, Goggins started in agony, every step a searing pain. Yet, he refused to quit. He limped, shuffled, and stumbled through the brutal 130 F (54C) heat, his crew constantly icing his body to prevent collapse. He pushed through intense pain and hallucinations, embodying his "Sta