Of those who have completed a marathon run, there is a multitude of personalities. Some do it just once to cross it out on their to-do lists, while some others are addicted and do it over and over again in spite of pain and costs. Invariably, all believe it to be a proud achievement. Many (myself to be included) would find their lives changed permanently by setting out to schieve this goal. Share your insights on training for and running a marathon with others.