So let’s just say maybe this has happened: The jar of Nutella was emptied, circa 3 a.m. No attempt was made to honor its role as a spread; no, this crime of calorie consumption was committed with a spoon. A big spoon. And this was after a virtuous day of green juices, flax seeds and the spin class with the psychopath teacher. Might as well just spend the next week camped out inside a birthday cake, right? Well, no, actually. The nocturnal diet setback is only a catastrophe if you let it be. Start fresh the next day—now that Nutella isn’t there to tempt you.