The Obligatory Exerciser

The Physician and Sportsmedicine: The Obligatory Exerciser examines the psychological factors contributing to excessive exercising: "[t]reatment may follow guidelines similar to those for overtraining, addiction, compulsion, and eating disorders." Note also the personality descriptors for those who don't know when to quit pushing their bodies: "Achievement oriented, Addictive, Compulsive, Independent, Narcissistic, Neurotic, Obsessive, Perfectionistic, Persistent."