Crunches and Pig Spines

When cadaver pig spines were placed in machines as part of a series of recent experiments and bent and flexed hundreds of times, the pigs’ spinal discs almost always ruptured, eventually.

Ab crunches turn out to be mostly useless for fitness, and at some point in the recent past there may have been a room filled with machines furiously crunching pig spines, Fantasia-style, and wait, yes, there is a video. (Above.) Not for the faint of heart.