Most of us have been there at some point. You somehow find yourself barefoot in your kitchen at midnight, eating ice cream out of the container. Alternatively, the mid-afternoon energy slump has landed you in front of the vending machine pining for a package of candy. Maybe the kids didn't exactly have to twist your arm to make brownies last weekend. And, by the way, is that whole sleeve of cookies really gone? How is it that, despite our most valiant efforts, a sugar craving can effortlessly throw a healthy way of life off track? And how do we combat these cravings in an effort to eat better? Get a handle on the basics.