DON ARTHUR'S ARTICLE ON FATIGUE.
Donald Caldwell Arthur, Jr. is a retired U.S. Navy medical corps vice admiral (VADM). He entered the Navy in 1974 and eventually served as the 35th Surgeon General of the United States Navy (2004–2007) . He participated in the 2005 IronButt Rally but was rear-ended by a car. He is a noted long Distance Rider.