Me, I have a disease which is kinda wiping out my connective tissue over time, which includes those lovely soft discs in my spine, dammit. Biggest current issue with that is that it's getting harder and harder to sit at my desk for more than ~15min without lower back pain ratcheting up...

So I was wondering if anyone here with lower back issues has found a chair that helped them sit?

From L-R, T-B, chair #2 is a saddle chair, which looks kinda interesting. Chair #4 is one I used to have, which seemingly tries to keep the spine perfectly straight-up, but it was also hell on my knees.

Now, chair #3 kinda looks like a Star Trek-style bumper-car that I'd want to ride in my very last visit to an amusement park. 😄

(right-click as needed)