[0x1ch]

Just hit my mid twenties. Want to say I started having some shoulder issues around 20 years old. Although correlation =! causation, I largely think this is because of my lifelong computer usage and PC gaming. It doesn't bother me all the time, but every few months something will change up and it comes back. Surprisingly, my wrists and hands are completely fine, no carpal tunnel or anything similar.

[SoftTalker]

Yes, sitting slightly hunched up with your hands in front of you on a keyboard for 8-10 hours a day will screw up your shoulder mobility over time.

[0x1ch]

I think using a standing desk has really helped. I don't use mine at work often, but I generally am standing when I'm at home and it really does feel like it has improved my shoulder issues and posture.