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Contagious yawning has been linked to empathy levels in several studies. However, new research in the journal Personality and Individual Differences finds that people with psychopathic traits—especially a lack of empathy—are not as susceptible to catching a case of the yawns. Jeff and Anthony discuss whether not "catching" a yawn makes you a psychopath, and specifically what that means for their own yawning habits.

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Today’s story was sent in by Andrew Tomlinson: http://mentalfloss.com/article/67644/new-study-shows-psychopaths-dont-catch-yawns

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