Bones were an important part when it came to unleashing power.
On Earth, there was a horrible and deadly disease called Tetanus.
Tetanus would cause tremendously painful and powerful cramps over the afflicted person's entire body.
These cramps could sometimes become so powerful that they literally broke the afflicted person's bones.
There were even reports of these cramps breaking a person's spine.
Usually, a normal person wouldn't use so much power that their bones broke, but Tetanus made that possible.
After all, a person's instincts simply refused to use so much power since it would potentially lead to debilitating injuries or death.
Muscles used power by contracting while being attached to different bones.
For example, the biceps was attached to the shoulder blade and the radius bone.
By contracting, the radius bone would be pulled towards the upper arm or shoulder.
