I'm Deena. My unique approach to performance emphasizes mental fitness in order to maximinze physical strength. For me that meant an Olympic medal in the marathon and holding American records at every distance from 5K to the marathon. A positive mindset can be applied universally to power performance in any endeavor. Many of my strategies can be found in my New York Times best-selling book, Let Your Mind Run: A Memoir of Thinking My Way To Victory.