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Pleasure and pain: Study shows brain's 'pleasure chemical' is involved in response to pain too

For years, the brain chemical dopamine has been thought of as the brain's "pleasure chemical," and studies have linked the addictive properties of drugs like cocaine to their effects on the dopamine system. But now, a new study adds a new twist to dopamine's fun-loving reputation: pain.

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Keywords: pleasure, pain, study, shows, brain, chemical, involved, response, show

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