This child's brain -- brought to you by McDonald's.
Finally, there's proof of what most parents already know: food ads work really well on kids.
Researchers have found the most popular food companies have branded the brains of young people in such a powerful and genetic way, just seeing a logo trips the pleasure and reward switches in their young heads.
This means, on cue, if they see certain company names, their appetite controls are triggered. Although the same doesn't happen with logos for items not connected to food -- say, BMW versus Rice Krispies. . . .