Today is the fourth of our special video and audio podcasts of the 2012 Huffines Discussion Scholars.  This week's 2012 Huffines Discussion Scholar is Dr. Michael Davis from Oklahoma State University.  Dr. Davis is a renowned expert on performance and fatigue and continues to do great work using sled dogs to find information that can help humans exercise longer.  Dr. Davis' talk is titled "The Art and Science of Fatigue - Proof" .