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THE INNER VOICE SPEAKS

Scientists have confirmed what we all knew: You do indeed have a little voice in your head that warns you when you're about to do something dumb. It's called the anterior cingulate cortex, according to white-coated authorities at Carnegie-Mellon University. If you're receptive to it, it's as good as having a guardian angel. "Don't do it," the voice whispers when you're on the verge of locking your keys in your car or leaving the bar with the cute drunk you just met. "Go back," it murmurs as you start to walk away from a huge, though initially inconvenient, opportunity.

From Rob Brezsny's column