Marshall Ulrich is one of the biggest badasses on the planet.
Not only has he climbed the tallest summit on each of the seven continents, but he's also run over 124 ultra marathons (each of which measure over 100 miles in length).
He ran from San Francisco to New York City in just 52 days.
But one of the biggest problems with running absurd amounts of miles is the wear and tear it puts on your feet.
The toenails, in particular, can become sources of extreme, throbbing pain for long-distance runners.
In 1992, Ulrich decided to address this issue by having his toenails removed entirely.
"I was running high, high miles, and I knew I was probably going to be running for the rest of my life," Ulrich told Trailer Runner Magazine of the decision. "It was a very practical decision."
Photo Credit: Trail Runner Magazine via Marshall Ulrich