Not sure how I feel about this... poor brownie.

Kerri Boutelle, a professor of psychiatry and pediatrics at University of California, San Diego's School of Medicine, calls her willpower-enhancing technique "cue exposure." The aim is to train the brain of overweight and obese children to reduce the desire to eat when they're not actually hungry. And since many impulses to eat come from triggers in our environment, such as getting an urge to snack while watching TV, interrupting such automatic responses can help children cut down on mindless eating.[...]

In the studies, the participants are given a favorite food, such as a brownie, and told to rate their craving on a scale of 1 to 5—1 means "I can resist this," and 5 is "I'm dying for it," Dr. Boutelle says. The children are instructed to put the brownie down, wait 30 seconds and rate their cravings again. Another rating is recorded after the participants sniff the brownie, then again after taking a small bite and later after staring at it for five minutes. Finally, Dr. Boutelle directs the children to throw the brownie away.