For those too lazy to read the article, here is a summary:
"Good training is essential, helping runners get through fatigue, pain and bad weather. But when marathoners hit the wall and the finish line is still several miles away, they'll have to tap into something within themselves to keep going.
An estimated 10% to 15% of L.A. Marathon registrants never complete the race, race officials say. True, some don't bother to show up on race day, but others start and give up along the way.
This is where motivation comes into play. Some motivation comes from within. Known as intrinsic, or internal, motivation, it's fueled by joy in the activity, like running, or in the sense of accomplishment that results. Extrinsic, or external, motivation comes from outside factors, such as wanting a medal or accolades from friends.
For a marathon, put your money on the intrinsic kind, say sport psychologists.
