There's an old adage that for every second too fast per mile in the first half of the race, you'll run at least 2 seconds slower at the end.

The most important force inside you for feeling better all the time is the will to get more fit.

We have a no puke rule. The purpose is performance, not puking.

We are designed to run and we increase our chance of daily happiness when we do so.

Here is the start, there is the finish line. Between that, you have to run.

Think chest/hips/ push, or CHP, when it's time for uphill running. Chest up, hips forward, push strongly off each foot.

When using the run-walk method to finish a marathon, the most important walk break comes in the first mile. The second most important one comes in the second mile, and so on. The point is, walk before you become fatigued.