I don't "slouch" per se, as I never sit completely straight up while on my computer (desktop). I always scoot down in my office chair and stretch my legs far in front so i can put my feet on a foot rest. so my back is fully supported by my chair, but my lower back has a curve and its just empty space between my chair and my lower back. I have been doing this for years and have had no real problems with it. I am in my 20s. is this bad? also, is there a way I can sit back and relax on my computer for couple hours without having to sit completely straight up? I just get tired from working all day so i don't exactly want to worry bout posture