The Huffines Discussion is where great speakers and leaders in Sports Medicine talk about the future in a manner understandable to all. Today's talk is from Dr. Richard Linnehan, who talks about "Living, Working & Exercising in Space: An Astronaut's Perspective".  This is a great talk that shows some of the stresses on astronauts as they complete their space missions.  Click here for Dr. Linnehan's bio.