[cj]

Hm, I don't correlate suffering with the feeling I have when pushing myself to increase my morning run from 4 miles to 5 miles.

I liked the original quote up top:

> That is, if the perceived benefits of enduring outweigh the pain.

Then again, I just looked up the actual definition for "suffering" and it's much less dramatic then what I associate with suffering. Simply "to submit to or be forced to endure" which, in that sense, I'd agree.