Why does weed cause the munchies? Now scientists know
Why does weed cause the munchies? Researchers at Washington State University have found that it activates neurons in the brain to stimulate appetite.
boingboing.net
One interesting aspect of the study is that too much weed can kill a mouse's appetite. Mice exposed to a 200 mg dose of cannabis vapor displayed a significant increase in food intake compared to those exposed to just air. At the 100 mg dose, there was no significant difference in food intake from air exposure, and at the 400 mg dose, there was actually a significant decrease in food intake.
So smoking makes you hungry until you smoke so much you cant move (couch lock) - who knew?!? ¯\_(ツ)_/¯