Joint injuries do far more then just hurt.
Joint damage can rob you of months of hard-earned gains and fitness. It doesn't matter if you're a runner; a cyclist, a bodybuilder, or a football player - joint injuries affect all types of athletes. When joints are damaged - no matter how much Discomfort you can take - the Discomfort, and loss of flexibility and proper biomechanics that occurs cause a loss of function, strength, and mobility. But with JSF, you can take Beneficial Effectsative action instead of waiting for the axe to fall.