How Long Can a Man Work?

A man can run fast and long if death or the devil is behind him. He can fight hard for unbelievable lengths of time if there can be no retreat or a victory is in sight. Most hazardous is the fatigue which comes from spurts of extreme effort. Such supreme effort seldom if ever occurs in any job on the home front. It does occur in sport spurred by the necessity to extraordinary violence. A man may actually put out so much effort that he burns up his body fuel at a rate eight times more than the normal rate. I have no idea where they got these numbers. That's a pretty accurate. If you start abusing it and making it all like good, no man will do