The Badwater 135 ultramarathon is known as one of the world's toughest races. What aspects of extreme endurance events like this fascinate you the most? Share your thoughts on the mental and physical challenges involved. Two Las Vegas runners to take on the Badwater 135 ultramarathon https://www.reviewjournal.com/local/local-las-vegas/two-las-vegas-runners-to-take-on-the-badwater-135-ultramarathon-3855439/