> 3) It is time consuming and boring (of course this is subjective), and very inefficient at improving fitness. Whether you run, bike, hike, swim, row, or what

> 3) It is time consuming and boring (of course this is subjective), and very inefficient at improving fitness. Whether you run, bike, hike, swim, row, or whatever it doesn't have to be boring. Running/biking on a rural Midwest road IS insanely boring alone. I frequently listen to audiobooks or podcasts either educational or entertainment and that boring road becomes something I look forward to. The times I elect no audio I use it to think on hard problems I am trying to solve or plan for These eliminate your counters of time consuming and boring. Regarding the inefficiency, you can do cardio that isn't running if you believe running is bad for you. I listen to the same thing during strength training