Marijuana-induced ‘munchies’ explained: Cravings are rooted in sense of smell, study finds

Jason Rehel | February 12, 2014

And why do marijuana smokers have the desire to eat more? Simply put, they smell things more strongly.

“Our study shows that both exogenous and endocannabinoids can disinhibit circuits of the olfactory bulb, which is the primary brain region mediating the sense of smell. Like that, the odours appear stronger to the subject.”