system
Given the following post, respond as if you're commenting on Reddit:
human
eli5:Why does slouching feel more comfortable than sitting up right?

Got a new chair which is meant to help support better posture due and been sitting in it for 2-3 hours and the lumbar support is causing discomfort and it feels so nice to just slouch and lay backwards where my lumbar is floating like im curling my body.
gpt
It feels more comfortable since your body is more used to the slouch position than sitting up straight, doesn't make it more healthy. The lumbar support forces you to use muscles that you've neglected for so long that they have to re-establish themselves first before it can be comfortable to sit up straight for longer periods of time.