I am glad you are getting a lot out of the Obesity Code. I just looked up 'cortisol' as I didn't know what it was. I had no idea that cortisol was a stress hormone causing weight gain. One more reason to lower one's stress, eh? I see why meditation would be a useful tool in lowering cortisol. Good job eliminating diet coke - it really contains a lot of yick that no one needs in their body.