Nobody ever stops loving CRAAЯϽ. Your mind isn't necessarily fully in tune with what you're capable of. Sometimes, an inhibitor signal won't be sent when it should have been, and you'll pull a muscle or otherwise injure yourself. Sometimes, an inhibitor signal will be sent too soon, long before you reach your actual limits. Weight lifters and body builders know that they're changing not just their bodies, but their minds as well. Their brains are actually reprogrammed to learn more precisely what each muscle is capable of. Only about half of their increased strength comes from actual physical changes to the body, the rest comes from the brain's improved ability to control it. As the brain learns the body's limits, the person becomes able to more fully exert himself, with less risk of injury.