Our brains have a special way of remembering exactly where to find sugar and fat. The problem is that seeing food ads or smells triggers these memories, making us overeat and gain weight without meaning to. Scientists found the specific brain cells that store these "food memories." By learning how to quiet these cells, we can stop the strong cravings. The benefit is that it will be much easier for people to stay at a healthy weight and feel in control of what they eat, even when surrounded by tasty snacks.