Alex Hutchinson is back to discuss some of his most recent articles he published at Outsideonline: The Salt in Sports Drinks May Not be as Crucial as You Think How Pregnancy Affects Your Marathon Time Alex Hutchinson is an avid runner and author.  We did a series of podcasts on his book, Endure: Mind, Body and the Curiously Elastic Limits of Human Performance. Previous Podcasts where we discuss the specific chapters of Endure: Podcast #1:   The Unforgiving Minute, The Conscience Quitter, Heat, Belief Podcast #2: The Central Governor Theory, Pain and Training the Brain Podcast #3 : Oxygen, Fuel, and Zapping the Brain Check out Alex’s other books: Which Comes First, Cardio or Weights?: Fitness Myths, Training Truths, and Other Surprising Discoveries from the Science of Exercise Big Ideas: 100 Modern Inventions That Have Transformed Our World What Defines our Limits - with Alex Hutchinson Follow Alex on Twitter Check out Sweat Science