It's a remedy for kidney stones you likely haven't thought of, and it involves roller coasters.
In a report from Michigan State University riding a high-intensity roller coaster could help pass them.
Researchers began investigating after a man said riding "Thunder Mountain" at Disney World helped him.
Now if you're looking for the best result - sit in the back. Research found if you're in the back, you have a 63 percent chance of passing the kidney stones.
Doctors say they have no idea why it works. Experts warn that anyone who wants to try this needs to see a doctor first.