Is your weird Uncle Herbert spending too much time at Disney recently?
It may be because a urologist at Michigan State University recently "discovered that riding a roller coaster helps patients pass kidney stones with nearly a 70 percent success rate."
As it turns out, not every roller coaster is equal for stone passage, "Big Thunder Mountain was the only one that worked. We tried Space Mountain and Aerosmith's Rock 'n' Roller Coaster and both failed."
Read more about the discovery of fun, cheaper healthcare here.