‘Real life Flash’ can run 350 miles without stopping due to rare genetic condition

There’s a bizarre condition that allows a human to run 350 miles without stopping.

53-year-old Dean Karnazes is being hailed as the “Real Life Flash” for his rare genetic condition that makes his body immune to cramping. The competitive distance runner can crank out two back-to-back marathons without breaking a sweat.

To run that far and that long is a super-human feat,” Nicole Marie Pinto, an exercise physiologist at the University of California San Francisco Medical Center, told Inside Edition.

Karnazes’ God-like endurance is due to his rare ability to flush out lactic acid, which builds up in our bodies when we exercise, causing muscle cramps and fatigue.

He has run at temperatures below 13 degrees and completed 50 marathons in 50 days. He’s also famous for having run 350 miles in 80 hours and 44 minutes, without sleep. Spectators say he was barely sweating when he completed the incredible feats.

At certain levels of intensity, I feel that I can go on for a long time without getting tired,” he told The Guardian. “No matter how hard I work, my muscles never give up. It’s kind of nice if I plan on running for a long time.”

via tc