Author's tone immediately makes me want to disagree with them. Which might be more of a reflection on me than anything else. All I can say is that I had a dead

Author's tone immediately makes me want to disagree with them. Which might be more of a reflection on me than anything else. All I can say is that I had a dead straight wooden chair for years and coupled with my bad lifestyle I developed pretty bad back issues (diagnosed). Upon replacing it with a fairly basic ergonomic chair (height, tilt adjust, mesh back and lumbar support), my pain levels are significantly lower. It cost me about $150 (I'm not in the US or EU so prices are obviously very different) and I'm glad to have spent it.