A lot of IT and Programming work is a lot of reading punctuated by short bursts of typing behaviour and 'walking speed' amounts of clicking. Stuff like typing

A lot of IT and Programming work is a lot of reading punctuated by short bursts of typing behaviour and 'walking speed' amounts of clicking. Stuff like typing dictation or pro star craft players is constantly clicking and typing, so I'm not surprised that you don't have RSI problems. Try taking 10 pages of written text and typing it out with no breaks, you'll feel the pain soon enough. Or your like those people who never have problems with their teeth or eyes despite abusing both. Some people are just built better, other people have weaker systems like skin prone to excema, but since it is internal it's less obvious.