Hmm, aren't those warnings about sitting talking about a sort of ridiculous extreme though, sitting in one position for most of the day? You maybe get that on

Hmm, aren't those warnings about sitting talking about a sort of ridiculous extreme though, sitting in one position for most of the day? You maybe get that on long-distance airplane flights (and even then, you take bathroom trips etc), but even people with desk jobs almost never really sit all day like that.... [And in the of long-distance airplane flights, the whole deep-vein-thrombosis thing does actually seem to be a documented problem, if a pretty rare one...]