Before your bone brakes there are different noises. Scientists developed a system that measures this sound and can tell you to stop before it's to late.

The researchers are applying the same basic sound detection technique seismologists use to measure earthquakes. "The goal is to create a wearable device that would alert the person when a stress fracture was imminent so that they could stop rigorous physical activity long enough for the bone to heal," said Ozan Akkus, an associate professor in Purdue's Weldon School of Biomedical Engineering.

What I learned too is that bones are self-repairing systems. They dig a tunnel into the damaged zone and fill it. Interesting. With the Wearable stress-fracture detection system you can give your bones a chance to repair themself.

The system makes most sense in the army (sure) and for sports (even horse races - this time it will be for the horse of course).

Just read on here