I try to put my hands behind my head when I'm not typing or using the mouse (because otherwise they're always in front of me and my shoulder blades hurt like he

I try to put my hands behind my head when I'm not typing or using the mouse (because otherwise they're always in front of me and my shoulder blades hurt like hell). I switch mouse hands when my shoulder starts to get sore. I work at a standing desk with a stool so I can sit when I need to. And when I'm not working I try to spend as little time in front of a computer as I can. I also do yoga.