Fun Fact of the Day – Have kidney stones? Ride a roller coaster.
Specifically, the Big Thunder Mountain ride at Disney World which has been studied after patients reported passing stones after going on the ride. To figure out what was happening, urologist David Wartinger brought a 3D kidney model onboard the coaster and found that sitting in the front of the ride resulted in passing a kidney stone 17 percent of the time, while sitting in the last car yielded a whopping 64 percent success rate.
There are also documented cases of kidney stones being passed after bungee jumping, snowmobiling and dirt biking or basically anything that involves jarring motions that could force a stone from its resting place in the branches of the kidney.