Agreed, and many of mine do when I'm out with the dog or on the toilet. The thing is that those are unscripted. The point that I think the OP was making was that enforced breaks on a schedule will immediately kill any form of concentration or workflow

Absolutely, it's the regimented and very frequent schedule that is the problem. Breaks are necessary, and very useful - but if that frequency is what I have to do to stay healthy with a desk job, then I guess I'll be unhealthy

Basically - movement isn't free

What works for me is that I only have a small glass of water or a coffee at my table. If I want to drink more, I have to get up and walk over to the kitchen. Early in the day this can be about about every 20-30 minutes, later it goes down to maybe 45-60 minutes. Then there are, of course, rest room breaks. So I'd say I get up and move 10-12 times a day in an unforced, natural way -- not always 8 minutes, mind, but it's about progress, not perfection.

> but if that frequency is what I have to do to stay healthy with a desk job, then I guess I'll be unhealthy

That's an interesting lifestyle choice, but don't be shocked if others refuse to follow along.