 Enter the weekend warrior. You've probably heard this term before. It's used to describe people who aren't all that active Monday through Friday, but really go hard on Saturdays and Sundays. They're able to find the time and the energy and the motivation to squeeze the recommended amount of physical activity for a week into just two days. Well, according to a study that was just published in the journal Obesity, those weekend warriors, they were able to burn fat pretty well.