Researchers report that people with higher psychopathic traits show differences in their gut and oral microbiome compared with others. The study, published in *Translational Psychiatry*, finds variation in the types of bacteria present in both the gut and the mouth, alongside differences in metabolic byproducts measured from participants.
According to accounts of the research, compounds such as glucose and taurine track with distinct patterns across groups with differing psychopathy scores. The findings are framed as evidence of an association between gut-brain biology and behavioral traits, rather than a direct cause-and-effect relationship.
While both outlets describe the same core results—microbiome differences correlated with psychopathy-related measures—their emphasis differs. One focuses on the possible biological “drivers” of conduct suggested by the researchers, while the other highlights the novelty and unexpected nature of the link between microbes and psychopathic tendencies. Both agree that more work is needed to clarify mechanisms and rule out alternative explanations.
