Some teens may be pre-wired for addiction: study

But how instinctive is a teen's desire to snort a line of coke?

In the largest functional brain imaging study ever performed, researchers report findings that suggest that poor impulse control is pre-wired in some individuals. Specifically, they say that they have identified specific brain networks linked to impulse control and drug addiction — and that these differences exist even before an individual is exposed to drugs or alcohol.

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