According to everything I have read, rest is as important a part of marathon training as the weekly "long run" and the intense interval workouts. I don't rest very often or very well. I have become dependent upon the stress-busting qualities of my daily runs--so much so that I can hardly stand to not get in at least three miles every single day of the week except, of course, on the Lord's Day. Nevertheless, I am planning a pretty rugged 12 mile hill course for tomorrow morning's run, so today I am "forcing myself" to lay low, catch up on some reading and research, and garner some much-needed rest.