Need to pass kidney stones? Ride a roller coaster

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Riding in the back of a roller coaster could help people pass kidney stones. (WPVI)

This sounds a bit odd, but a urologist at Michigan State University says riding in the back of a roller coaster can help people pass kidney stones.

The doctor, David Wartinger, had heard this from some of his patients after riding Big Thunder Mountain in Disney World.

So he and another researcher set out to test the theory.

They made a 3-D silicone model of a kidney with small stones.

After riding the coaster multiple times, the stones moved.

In fact, when they sat in the back, the stones passed 64-percent of the time.

In the front of the car, the stones passed only about 16-percent of the time.

Of course, he says this needs to be tested in humans in order to say it truly works.

But he does say if someone has small stones, riding in the back of any roller coaster may help them pass.

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