The Cure for Your Junk Food Cravings? Sleep

"Under normal sleep conditions, the concentration of 2AG gradually increased in the blood during the day, reaching a peak in the early afternoon that coincided with the onset of early afternoon munchies.

But for subjects who had less sleep, not only did researchers note greater increases in 2AG concentration that lasted into the late evening, but participants were also hungrier and more likely to eat unhealthy snacks."