Heart Rate Variability, what is it and how can you use it to guide your training?

Elite athletes have a big Heart Rate Variability. What is Heart Rate Variablity? Why do elite athletes have such a range? Can you develop a big HRV as a runner? Is it necessary to have a big HRV or does this only apply to elite athletes? Listen to the coach on today's Ask Coach Parry Podcast for the answers?