/fa/ - Fashion

Dont waste your time trying to "correct" posture because the difference between A and B is a result of many things and, sorry to say the truth, but GENETICS play a lot in this. I'm not trying to same some SH bullshit like you have bad posture because of weak genetics. What I'm trying to say is that anatomical variation of the many body parts in the upper body can make your posture lean to A instead of B.

>sitting straight like if you have a huge dildo in your ass
I dont recommend it, all it does is creating unnecessary strain on the back. I better tip is sitting is for resting so no problem if you slouch when you are not standing. Try to improve you standing/active posture and aim spend more time being active.