I don't know... I spend significant amount of time with paper[1] when tackling difficult problems and I haven't seen similar behaviour in coworkers in any programming job I was at, so I sometimes keep wondering if it isn't my mind that's broken - everyone else seems to do fine just sitting at their computer and coding all day, while I have to do regular breaks for paper and/or whiteboard.

[1] - for the last few days I've been trying edw519's style of work with printing out listings of source code and going somewhere away from computer to plan next day's work. So far it's working quite well.