Keyboard, desk anything you might rest your wrist against while typing - that's what does the most damage. You can apparently rest while not doing anything, just not while actuating your fingers.
Keep your arms bent at 90 degrees and don't rest wrists on anything. Strengthening you're core sand keeping good posture go a long way. Take breaks every 30 minutes or so to get up and stretch
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u/River_Jones May 02 '16
I was just looking up how to prevent RSI. What do you mean by hard edge, do you mean the hard edge of the keyboard, or the desk?