John Vonhof is the foot magician for ultra runners.  There are countless people that have reached further on an ultra run or even earned a belt buckle because of the tireless work that John has done.  We had John on the podcast over three years ago (Listen here).  Since then his book, "Fixing Your Feet - Injury Prevention and Treatment for Athletes" has been updated to its SIXTH edition. Visit John's website to learn more about how to help prevent foot issues and what to do when you get them.