Recovery is a key component of any training program. There are a large variety of recovery techniques that prove to restore the human body both psychologically and physiologically. These techniques are crucial in decreasing tissue trauma and inflammation and correcting the muscular imbalance.
If running were always as simple as "just run" then it would be simple enough for all of us to "just run", right? Instead, we add GPS, PR's, Pace, VO MAX, Negative Splits, Tempo Runs, Fartleks, Hill Repeats, and even #$^%* Wreck Bags to the mix in order to keep running interesting. To put it another way, running apparently isn't crazy enough for some of us by itself, somehow "runners" need to make it completely over-the-top insane to keep motivated. WTH?