Riding Roller Coasters Can Help Dislodge Kidney Stones

The Big Thunder Mountain Railway at Disney World. (Credit: Gian94g/Wikimedia Commons) For those suffering from painful kidney stones, there's a really good excuse to visit Disney World. A new study suggests that riding roller coasters can shake kidney stones loose before they become a problem that requires medical attention. For years, urologists have heard from patients that bouncing, jostling and jarring activities seem to help them pass kidney stones, but there hasn't been research to back those claims up. It took an astonishing claim from one patient who returned from Disney World to spur two enterprising urologists, armed with a 3-D printed kidney, into action.