Ruth Heidrich received her Ph.D. in Health Management in 1993 and is the author of The Race For Life Cookbook, Senior Fitness, and Lifelong Running. Diagnosed with an aggressive type of breast cancer in her mid-forties, despite thinking she was extremely healthy having run marathons, she researched possible causes of breast cancer when exercise was not enough. She came upon Dr. John McDougall's research, which strongly indicated that the culprit was the standard American diet. A passionate example of how Ruth Heidrich turned tragedy into triumph using a medically sound diet and exercise program which has served her well for over forty years.