I know you have been working hard at this for a while Steve. Thought this was interesting and perhaps something one could easily incorporate into their running routine.
https://www.sott.net/article/375612-Scientists-find-happy-secret-to-improve-your-running-endurance
Mental attitude definitely makes a difference. Interesting that it could affect race performance, but that isn't something I worry about
Just keep at it Brother!
I use this sometimes through difficult parts of long-running races or training and I can confirm it works. I "discovered" it intuitively and it is great to see that it has some backup research and scientific explanations. Thank you!
You're welcome