Roller Coasters For Kidney Stones

Interesting treatment!:

But one particular gentleman really inspired Wartinger. The man rode Big Thunder Mountain Railroad at Disney’s Magic Kingdom, and then passed a small stone. Then he did it again and passed another. And then another. “That was just too powerful to ignore,” Wartinger said. “I'd been hearing these anecdotal stories for a couple years, and then I thought, okay, there's really something here.”

If there were a way to make people pass stones while they were still small, Wartinger realized, the potential benefits could be enormous.