I used to run pretty competitively, however I'd always train with music / an ipod. In fact I still run with my iPod classic. Even with music I still daydream al

I used to run pretty competitively, however I'd always train with music / an ipod. In fact I still run with my iPod classic. Even with music I still daydream almost every run. Concentration is a muscle that has to be trained like any other. There's probably a ton of selection bias in that individuals who can't focus don't go to D1 programs.