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You tell me. I got varicose veins for spending to much time sitting in front of my computer. It's mostly linked with heredity, but the lack of activity in your legs is one of the main responsibles. So be careful guys, if you're gonna spend all day in your chair, make sure you stand up and exercise your legs periodically. Your back and your legs are gonna thank you.

absolutely, wandering around randomly every hour or two is also key for doing good problem solving or research. I honestly don't think I'd be able to function sitting in one location for a few hours unless its something of the magnitude of a finishing touches on a thesis project or the like. Kinda rules out a whole bunch of jobs I don't want anyways!

alternatives: - sit on exercise ball for some time every day, or

- on the floor cross-legged, or in yoga poses called virasana (sitting between your shins) or double pigeon (with shins stacked in front of you). All very good for hips and back if done correctly, bad for knees if done incorrectly.