(NBC NEWSCHANNEL) How's this for a unique way of dislodging painful kidney stones?
Ride a roller coaster!
A urologist in Michigan became intrigued by the idea when several of his patients returned from vacations to theme parks.
They said they were able to pass kidney stones only after being jostled around on roller coasters.
The doctor developed a model of a kidney and tested the theory.
He found sitting in the back of the coasters worked best -- passing stones more than 60% of the time.
This study is from researchers at the Michigan State University College of Osteopathic Medicine, and is published in the Journal of the American Osteopathic Association.