Various studies say that sleep limitation raises a signal that may enhance the hedonistic aspect of food consumption, the desire, and fulfillment gained from eating.
"Sleep limitation seems to increase the endocannabinoid system, which is targeted by the active element of marijuana, to enhance the desire for food intake,". Sleep deprivation decreases movement in appetite evaluation regions inside the human frontal cortex and insular cortex during food choices. This is combined with an inverse addition of activity within the amygdala. Further, this bi-directional shift in the form of brain activity is connected with a significant increment in the desire for weight-gain, by preferring high-calorie foods which are followed by sleep deprivation.