"From an Olympic medalist runner and the record-holder in the women's marathon and half-marathon, a lyrical, inspirational memoir on how harnessing the power of the mind can unlock hidden potential. Deena Kastor was a star youth runner with tremendous promise, yet her career almost ended after college. Her competitive method--run as hard as possible, all the time--brought her to the brink of burnout and fostered a frustration and negativity that threatened...