I started using an ergonomic keyboard when I had shoulder problems about 15 years ago. There the only keyboards I buy. If my employer won't get me one, I buy my own for the office.

>I was starting to feel incoming carpal tunnel on my wrists about 10 years ago. I switched to Microsoft Natural keyboard and there was light at the end of that tunnel -- I've been symptom-free ever since. Excellent hardware from Microsoft -- who knew?
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>Pertti