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Scientists find link between gut bacteria and psychopaths

Summary by GEEKSPIN
The secret to having psychopathic traits could have something to do with gut bacteria. That’s the provocative claim of a new study published as an early-release, peer-reviewed paper in Translational Psychiatry. To test the hypothesis, a team led by Carolina Costa, a biomedical scientist at the University of Porto, recruited two hundred adults to fill out a questionnaire built to measure psychopathic traits, then collected saliva and fecal sample…

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Scientists find link between gut bacteria and psychopaths

The secret to having psychopathic traits could have something to do with gut bacteria. That’s the provocative claim of a new study published as an early-release, peer-reviewed paper in Translational Psychiatry. To test the hypothesis, a team led by Carolina Costa, a biomedical scientist at the University of Porto, recruited two hundred adults to fill out a questionnaire built to measure psychopathic traits, then collected saliva and fecal sample…

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GEEKSPIN broke the news on Tuesday, August 18, 2026.
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