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Re:Discovering Two Screens Aren’t Better Than One (2014) by Yizahi on Saturday June 13, 2015 @05:38AM (#9710459)
So you say that second monitor caused neck and shoulder strain and then you say that you use laptop for coding? I notice some mutually exclusive points here.

I worked about a year on a laptop and also used laptop at home a little. It was a horrifying experience, neck and back strain was really big because of terrible posture behind a laptop - low placed screen, too close screen to keyboard and yourself, narrow and unergonomic keyboard, small screen estate.

Re:Discovering Two Screens Aren’t Better Than One (2014) by foz on Saturday June 13, 2015 @09:14AM (#9710901)
For me the constant side-to-side, combined with mouse usage was the problem. Trying to re-orient my field of vision (I wear glasses with a strong prescription as well). Looking down or straight ahead has never caused me problems.

I should also point out that on the train, I have a table where I sit (not in my lap, that sucks). I also try to use a stand-up desk more for all-day laptop usage.