And it’s funny because you’re still using your back to some degree. It’s a muscle like anything else and can be overworked or worked improperly through bad form or whatever else. It took me quite a while to realize that it deserved as much focus as other muscle areas do.

I work a desk job and had my back seize up on me years ago. It was to the point that I had to have someone help me get out of bed. That was the wake-up call. Got a standing desk eventually; started running and biking; paid more attention to my posture.