Are there any studies demonstrating this? I've always wondered about the long term effects of standing at >4 hours at time.
Varicose veins, for one. I think it messes up your feet too, but that's what the standing mat is for.
You could use a stool when you get tired of standing.
That's commonly said w.r.t. standing desks, but I have to think there's a reason we don't use shorter stools as normal desk chairs. I presume they're just not as comfortable.
You're right. But it should be feasible for 'normal' chairs to simply be designed taller.