I have thought a lot about why CrossFit training has been key to stopping my OCD. I think it boils down to being constantly challenged. In the beginning I was replacing my feelings of anxiety and self-doubt with a sense of achievement.
I learned some fundamental human psychology to better understand the triggers for my Non Epileptic Anxiety Disorder and have managed to get myself to good health again. I owe so much of that to exercise.
It took a lot of perseverance to learn how to manage my mental illness. I was eventually able to start by leaving the house alone, start jogging, then hiking in the Lake District and eventually summiting Kilimanjaro in 2009.