[DrBazza]

Standing desks aren't yet (2016) proven to do anything: https://www.cochrane.org/news/health-effects-sit-stand-desks...

[specialist]

Standing burns more calories. Between 20 and 50/hr depending. A coworker added a treadmill under his desk. He claimed he burned 100/hr.

FWIW, I fidget, a lot, and have found that a barstool works best for me. Stand, lean, sit, prop (a foot), dance, whatever. Very flexible.

[natalyarostova]

Anecdotal proof often precedes formal proof. If the cost is low and there exists potential expected benefit it can still be rational to do it.

[greenhatman]

Sadly, it's generally quite expensive.

[crooked-v]

It doesn't have to be noticeably more expensive than a normal desk arrangement. Just get a static standing-height desk (longer legs, no special motorized stuff), and a drafter's chair with a seat adjustable to barstool height.