From the Runner's World Complete Book of Women's Running:
"So don't despair or bemoan your genetics. Rather, recognize that your physical makeup is the luck of the draw. Instead of wasting time trying to change it, learn to work with it. You can learn to take advantage of your strengths and work on your weaknesses. Don't compare your running to that of others or become self-critical if you aren't progressing as quickly as you thought you would. Such comparisons can lead to frustration and demoralization."