Better Posture & Tighter Abs

So I think I'm going to invest in an exercise ball for the office and use it for part of my day or all of it while I'm sitting in front of my computer rather then using a chair.

It's called 'active sitting'. As my body will be continuously adjusting to keep me on the ball I will be able to work my core muscles, an area I desperately need to pay more attention to, and improve my posture, which is my main reason for wanting to try this.

Basically I'm tired of waking up every morning in pain. At this point I can't remember what my body feels like with out back aches.