According to a NASA study, trying to change your body clock is difficult enough in itself. Even more difficult is trying to adjust your sleeping pattern. But if forced to do so because of work or school, it is best to try to adjust it gradually over a few weeks. Otherwise, sleep deprivation will tell your brain that it needs more sugar. Which will then cause you to binge and gain more weight.
All this new data conspires to explain my current situation. And I always thought that a good night's sleep is the solution to everything.