@helenczerski That's fascinating and rings true.
But I also get 'Art Museum Back' - I first noticed it when I started doing Art History as part of my Humanities Degree about 25 years ago. It's a crippling lower back pain which seems to be associated with standing and looking at art works, but I'm convinced it is associated with the walking because using those folding stools only help slightly.
Humans? Who designed them?