What about red eye? Isn't that caused from your eyes drying out, or something? I seriously doubt that what you posted is the 'science' behind the munchies, man! Are you making this shit up, or can you provide some evidence to support your claim?

I'll concede to your explanation if I'm wrong.
JunkYard Reviewed by JunkYard on . BAM! Cradle RoCK! the reason you get thirsty and hungry when high is because your brain decides that it has had enough weed and wants your body to flush it (by peeing the stuff you drank and pooping the stuff you ate) believe it that's the science behind the munchies and cotton-mouth that you get. Enjoy!!! Rating: 5