Podcasts. I also read my Kindle on the stationary bike in my 30min warmup cardio session. Once you develop the coordination and cadence, you don't need much a

Podcasts. I also read my Kindle on the stationary bike in my 30min warmup cardio session. Once you develop the coordination and cadence, you don't need much active thinking to spin a stationary bike. Once you're familiar with weight training motions, you only really need significant mental energy in the last couple of reps. Personally, most of my gym time is spent mentally engaged in what's coming into my ears. A year in, I'm making fairly consistent gains, so it's working.