Give yourself a pat on the back. You've made it through Thanksgiving, the ultimate food-centric holiday, with hopefully minimal cooking disasters, quibbles about politics, and general family drama. But now you've got a new problem: It's called a food hangover, and it's mental as well as physical. We all love the richness of gravy, turkey skin, and silky pumpkin pie, but now it's time to hit the reset button. After all, there's plenty more holiday eating around the corner.