Luke_A_Somers comments on Two angles on Repetitive Strain Injury - Less Wrong Discussion
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I haven't had the slightest trouble with carpal tunnel or RSI since I switched to laptops. Before then, it was always hovering around.
I can see a couple possible explanations for this (hardly exhaustive, obviously)
1) greater variety in how I am oriented with the device
2) very low action on the keys. I could tap them very lightly, and it'd take.
3) changes in my life circumstances - I'd just gotten married and started grad school, so maybe that relaxed me more. On the other hand, if that were it you'd think having a child would reverse the effect.
I'm not terribly keen on spending 40 minutes standing and meditating every day.
If you've got a solution (and it sounds like you do), then there's no need to try either of the things I recommend.
By contrast, I've found that laptops make my RSI much worse. In particular, laptops usually run pretty warm and typing on a warm or hot keyboard gets painful very quickly. My results are controlled in that using an external Thinkpad keyboard is far more comfortable than using the identical built-in keyboard on my Thinkpad.
Interesting. The laptops I've used all get hot at the bottom left rear corner, near the power supply, not where my hands touch them.