I came upon a website showing a body scan of a 250 lb woman next to a scan of a 120 lb woman. I was shocked at the difference inside a body.
Here is the link to it since I cant figure out how to put the photo here:
www.stumbleupon.com/su/1U2nAI/www.likecool.com/Body_Scans_of_two_Women_250lb_vs_120lb--Pic--Gear.html
(There are some super ignorant comments below the photo on that site, so I apologize for that, ignore them

.)
This scan was good motivation for me.