same way a drug addict's brain does so when thinking about drugs.
for a few days, write down all the food you eat, including where and when you ate it, anyone you were with, and how you felt before and after you ate the food. keeping this journal will help you become aware of any eating patterns; until you are, it will be difficult to change what you eat. in the same way that a drug addict needs to stay away from certain people when he is in recovery, you may need to avoid certain people or situations until you have your eating under control.
notice how you are eating your food. 