Overextension.

Why is it that our muscles never hurt while we are overextending them? Wouldn't it be much simpiler to have the warning that we are doing damage to our muscles rather than being in agony the next day? Wouldn't it be nice if your back said "Excuse me, but I beleive you should stop doing that now." As opposed to the way it screams at you in the morning... "Why would you lift all of that heavy shit? Now you are in pain because you are too stupid to live!" Although... in hindsight... I guess I should have known that there would be some consequence to painting and masking the factory floor for 8 hours... maybe I AM to stupid to live!