there are nerves in your ear that can be stimulated to curb eating and smoking.i'm sure there are others but i have no info on it.i'm gonna get all the info from this girl i knwo and get the full details.i'm told it works amazing.i mean my one friend was a chain smoker like crazy, when in the office, got pricked in the ear, and never smoked again.she said though if you continue to smoke after the first time you just go back until it works.one girl i knew it took three times, but it worked and she hasn'r smoked in two years.i'll get all the details.this one girl i know, her friend's mother had it done to stop eating.