Author, nutritionist, endurance athlete and coach,MattFitzgerald, joins The Nation again.  Mattrecently competed in the grand daddy of them all, Boston Marathon,again just a few short weeks after completing his first 50-milerace, American River50,  We discuss his transition to 50 and itrolls into what is different between a marathon and 50 miler.Check out Matt's DQS App.Here is the link to his latest book, if you haven't read hislatest book, "How Bad Do you Want It?Mastering the Psychology of Mind over Muscle"