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SlideshowReport

The Addicted Brain

Description
PET studies show that the brains of cocaine addicts have fewer receptors for dopamine, a neurotransmitter involved in pleasurable sensations. (The more yellow and red in the brain iamage, the more receptors.) The brains of people addicted to methamphetamine, alcohol, and even food show a similar dopamine deficiency.
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Which 'study break' activity do you find most distracting?
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