Comment by bratsche

It's really hard for me to imagine spending that much time doing cardio+strength training every day.

I went to music school and I used to practice around 6-7 hours a day, every day. And even after switching to software I still practiced 3-4 hours every day for a long time. It was just part of my routine and I enjoyed it, but even despite those things I had to reduce my daily practice time just because I didn't have time to do my job, sleep, cook/eat, drive to work, handle regular stuff that comes up in life, and then practice for 6+ hours a day. I managed to keep 3-4 hours for awhile, but then it gradually kept getting lower and lower just because I was kind of getting worn out. These days I finally stopped and don't practice daily anymore at all. I still do practice every week, but definitely not daily.