Maybe. How well do we think the ability to push one's self exceptionally hard during exercise correlates to non exercise akrasia or believing uncomfortable things in general?

For the first data point, I have a friend that does adventure racing, and his whole team 'takes turns' hallucinating, and rely on those less insane at the moment to keep them going in the right direction.

He doesn't seem to have akrasia problems, but does hold beliefs that I think are only there because it'd be uncomfortable and unPC to believe otherwise.