Fortunately for me, I’m not there yet, even though I still think that I’m on the computer a little too much, but aren’t we all? Right? :)
[Source: The Joy of Tech]
Really the only thing I do is try to quick save when walking around, after playing STALKER too much.
Sometimes when I was working couple of hours on the computer without a break I felt bit of dizzy but It felt rather like being drunk not high on drugs and I’m talking about working on things not browsing web.
Or when you're hitting keys and looking at something that's not the computer screen, and you wonder why no letters appear.