[vosper]

> There are "significantly higher mortality rate among people who regularly sit for prolonged periods" and "long term complications of prolonged standing" [3]. What's left for us? Floating? :-)

Alternating could be the answer :) I have a DIY treadmill desk, and I try to walk for at least an hour every work day, while working. Usually I get to 1.5 hours, in 2-3 sessions. It's been great - I sleep much better than when I don't walk, and it's easier for me to keep my weight in check. I've been doing it for 3 years now. I know this isn't possible for everyone, but it was easy to setup and, in the scheme of things, some of the best money I've spent.