I find that when I stay up past my bedtime, I snack. A lot. I know that there are a number of studies that were conducted on the corellation between staying up too late and weight gain. All anyone seems to know at this point is that there is one.
Me, I think that the more you stay up, the more energy you need. Walking around, working, doing whatever besides sleeping is gong to expend more energy. Energy = calories. Calories = food. Therefore, by process of substitution, staying up too late = more food = weight gain.
So here’s a pro tip from an amateur – after 10pm, keep veeeerry close tabs on your appetite. Do you have the munchies without feeling hungry? Then go to bed and get your eight hours. It’s important to catch yourself before you get caught up in late-night snacking…I know that I have a very difficult time stopping in middle.