An intriguing new study, from a team of Swiss researchers, has revealed neural activity during REM sleep in a particular region of the brain known to affect appetite and feeding behaviors significantly influences waking eating patterns.

Despite a hefty volume of robust study, REM sleep is still a mysterious and unique sleep phase. Named after the rapid eye movements that occur in all mammals during this sleep phase, it has also been referred to as paradoxical sleep, due to the strange similarity in brain activity between waking states and REM sleep.

The new research homed in on a brain region called the lateral hypothalamus. This tiny brain region, found in all mammals, is known to play a fundamental role in food intake, compulsive behavior, and a number of other physiological processes.