I can't comment on sitting necessarily, but I recently went to physical therapy and can confirm Roosh's point that stretching can do incredible things for the back. I've been doing them every day and I'm back in the weight room etc.
edit: I got the pain similar to Leonard D Neubache, I did a couple moving gigs for some extra pocket money and the 2 man team should have been 4. I should have said "screw this" but my ego got the better of me.
edit: I got the pain similar to Leonard D Neubache, I did a couple moving gigs for some extra pocket money and the 2 man team should have been 4. I should have said "screw this" but my ego got the better of me.