What conditions/scenarios contribute to this situation - i.e. the brakes needing to be cooled a bit more than normal? From Spottie's post, it seems fast turnarounds may be one thing by my reading (i.e. taking off not long after having already landed and used the brakes). Air temperature? Anything else? Long taxi delays with lots of use of the brakes?

I don't recall 'experiencing' this on any of my flights so far and it's now one of those curious things I learn on FT which piques my interest