Dr Metzl came to Google to discuss his book, Dr. Jordan Metzl's Running Strong, which is his recipe for fast, injury-free running for life. As a sports doc and a dedicated runner, Dr. Metzl hopes that his information will keep runners around the globe healthy and doing what they love. Dr. Metzl spoke on all aspects of running safety, and then did a demonstration of the technological features of his book. Running Strong is the first book to use a smart phone interface that allows readers around the world to scan pages with hand held devices and virtually walk into Dr. Metzl's office 24 hours per day, 7 days per week.