I find for myself that inactivity or the weather tend to bring me down, and then I want to revert back to my old ways. When I am feeling that way, I grab a bottle of water and go for a walk. I also concentrate on eating a higher protein meal for the next few meals. I learned years ago in weigh watchers that if you are feeling depressed or you want sugar....your body is low in protein. Up the ante for a couple of meals to get back on level.