For me it is closely correlated with aerobic fitness. Even though I don’t feel particularly exhausted after 60 minutes there seems to be an element of mental fatigue which makes it so hard. I think in other contexts the term is ego depletion, it simply requires a lot of sugar to make the brain keep pushing the body to keep going. And often I don’t realize this clearly when it’s happening, instead I attribute it to a general state of “I can’t be arsed anymore”. It is the same with running and swimming for me. Early in a block the medium length and long session are annoying and oftentimes I find reasons to cut them short. With growing fitness I find myself completing the longer session with more ease mentally and begin adding additional warm up or warm down time to the shorter workouts deliberately.
My recommendation is to hang in there and trust that it will get easier. But the aerobic adaptions for this take more time than grabbing the early FTP gains we see with structured interval training.
Music, dependent upon the type of work out. It’s the balm for life.
I had a specific Ramp play list which I keep adding to, put it on shuffle and happy days
Personally I can’t watch anything other than the screen and read the instructions whilst occasionally swearing at the IPad when a longer than anticipated and difficult segment appears during an interval.
Over the summer I was doing 3 3hr rides/week as part of a Polarized Plan. Podcasts and some TV, Given I was trying to keep my pulse low, I found I couldn’t watch any racing sports or exciting action, made my pulse go up. After that stent, my usual reaction is "1 hr–done already?