Introduction: You Can't Out-Diet a Bad Night's Sleep You're eating clean. You're training hard. You're tracking your calories. But the scales haven't budged in weeks, and every afternoon you find yourself standing in front of the fridge wondering why your willpower has completely evaporated. Before you add another supplement, tighten your meal plan, or torture yourself with more cardio, there's one question worth asking: how well are you sleeping? Sleep is the most under-rated variable in the fat loss equation. While nutrition and exercise get virtually all the attention, a growin…