How to spot psychopaths and narcissists, with Leanne ten Brinke
ReThinking
TED
4.7 • 626 Ratings
🗓️ 10 March 2026
⏱️ 35 minutes
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Summary
Leanne ten Brinke is a social psychologist at the University of British Columbia and an expert on narcissists, psychopaths, and liars. In this episode, Leanne and Adam debunk common myths about people with these dark personality traits and share tips for spotting them.They also break down strategies for connecting with and managing people with these traits, discuss how to reduce any dark tendencies you might see in yourself, and rethink their place in workplaces.
Featured guest
- Follow Leanne ten Brinke on Instagram and at leannetenbrinke.com/
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ReThinking is produced by Cosmic Standard. Our Senior Producer is Jessica Glazer, our Engineer is Aja Simpson, our Technical Director is Jacob Winik, and our Executive Producer is Eliza Smith.
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Transcript
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| 0:00.0 | we know from other research that dark personalities are very interested in power and status. And so, |
| 0:08.0 | you know, who has more power and status than people at the upper echelons of our government? |
| 0:14.0 | So it would be, it would be unsurprising to see higher levels of these traits there. |
| 0:21.4 | Hey, everyone, it's Adam Grant. |
| 0:23.5 | Welcome back to Rethinking, my podcast with Ted on the Science of What Makes |
| 0:26.9 | Us Tick. |
| 0:28.0 | I'm an organizational psychologist and I'm taking you inside the minds of fascinating people |
| 0:32.2 | to explore new thoughts and new ways of thinking. |
| 0:39.0 | The N10 Brink is a social psychologist at the University of British Columbia, and an |
| 0:43.3 | expert on narcissists, psychopaths, and liars. |
| 0:46.4 | Her debut book, Poisonous People, debunks misconceptions about these kinds of dark personalities, |
| 0:51.9 | replacing common myths with real information about how to expose a lie, |
| 0:55.5 | how to spot the early signs of psychopathy, and how to deal with narcissists. |
| 0:59.7 | I've long been a fan of her research, which is full of surprising clues on how to recognize dark traits and others. |
| 1:05.9 | One of her favorite signals is yawning. |
| 1:10.0 | Hmm. |
| 1:13.6 | So there's a set of studies that show people with various levels of psychopathic traits |
| 1:19.4 | yawns, and they just watch them and see how they react. |
| 1:23.9 | And the research shows that people with higher levels of these psychopathic traits are less likely to yawn in return. |
| 1:31.4 | You know, I posted something on social media about this research, and some people even in the comments were like, |
| 1:37.1 | every time you said yawn, I started to yawn, right? So we're incredibly reactive to the people in our midst, whereas people with psychopathic traits are much less so. |
| 1:50.0 | And you can see that even in these kinds of reflexive behaviors that other people take for granted. |
... |
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