Perhaps one of the chief points is to regulate your training so as to be sure of always being on the safe side: the least sign of overdose will surely lead to trouble. Go so far every day that the last mile or two become almost a desperate effort. So long as you are fit for another dose the following day, you are not overdoing it. But you must never permit yourself to approach real exhaustion; you must never become badly tired. A good way to judge whether you are overdoing it is by your appetite. A really fearsome thirst is a definite sign that either the pace or the distance has been too much. Not only are you unbearably thirsty but your appetite disappears entirely, even for many hours after the event. For professional runners, their … [Read more...]