When I finish a run, every part of me is smiling.

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

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.

The marathon is a competition between your will and your possibilities

Marathon training doesn't have to be a grind. By running for about 30 minutes two times a week, and by gradually increasing the length of a third weekly run-the long run-anyone can finish a marathon.

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.

Our bodies crave exercise, and reward us in so many ways when we do so.