
The Diary Of A CEO with Steven Bartlett
Hosted by Steven Bartlett
Written by a model from the transcript; not yet reviewed.
Steven Bartlett interviews researcher Dr. Leanne ten Brinke about deception detection, the dark tetrad personality traits (psychopathy, Machiavellianism, narcissism, and sadism), and practical strategies for dealing with difficult people. Dr. ten Brinke explains that people are generally terrible at spotting lies instinctively, performing at roughly 54% accuracy, and that common myths like gaze aversion are false. Instead, liars provide fewer verifiable details, display increased cognitive load, and lack emotional congruence. The conversation explores how dark personality traits manifest in dating profiles, corporate environments, and leadership, debunking the idea that these traits reliably lead to career success. Listeners learn actionable frameworks for managing toxic individuals, including establishing explicit boundaries, using the carrot instead of the stick, and conducting negotiations through written text rather than face-to-face.
Steven Bartlett opens the show, introduces the topic of lie detection and invites listeners to follow the podcast.
The discussion focuses on Duchenne smiles, hand gestures, and other facial expressions that signal deception or high dark traits.
The hosts explore how facial expressions and the amount of detail in speech can indicate lying, including the role of cognitive load and cortisol.
Listeners learn how to spot red flags, ask better questions, and apply insights to relationships, work, and parenting.
Dr. Ten Brinke breaks down psychopathy, Machiavellianism, narcissism, and sadism, highlighting their core features and how they differ.
The conversation debunks myths such as all psychopaths being violent or lacking eye contact, and discusses the spectrum of traits.
The episode covers how common these traits are, their genetic and environmental roots, and the impact of childhood experiences.
Dr. Ten Brinke outlines early intervention, warm responsive parenting, and reward-based approaches to reduce the development of psychopathic traits in children.
The hosts discuss brain differences, such as reduced prefrontal cortex activity and amygdala size, that correlate with high psychopathic traits.
The episode examines treatment options, motivation challenges, and the potential for change in both incarcerated and non‑incarcerated individuals.
Participants donate more to genuine pleaders than deceptive ones, illustrating how empathy is skewed by perceived truthfulness.
Seven practical rules are outlined, including setting boundaries, limiting power, and using rewards to influence behavior of high‑trait individuals.
The episode wraps up with a reminder of the small but powerful impact of managing a minority of high‑trait individuals on overall well‑being.
Eye Contact Mythinsight
The guest explains that the most common belief about spotting a liar—that they cannot look you in the eye—is completely unsupported by research.
Laboratory tests where participants try to detect lies with money on the line show that average people perform at only about 54% accuracy.
Asking Open Questionsstrategy
Instead of asking closed-ended questions, good lie detectors ask open questions and demand more details, raising the cognitive load for liars.
Psychopathy and Successdebate
Studies pitting good versus evil hypotheses found that high psychopathy was actually associated with less influence in government and lower earnings for hedge fund managers.
Text Negotiationsstrategy
Negotiating via text rather than face-to-face removes the charismatic advantage and physical intimidation tactics of individuals with dark personality traits.
While only about one percent of the population has clinical levels of psychopathy, these individuals account for roughly half of all serious crime.
“About five seconds. So, most people think a psychopath looks dangerous.”
“They will say they can't look you in the eye, but there's no research to suggest that that is true.”
“They were using like happy expressions, hostile language at the same time.”
“People are not very good detecting these, these lies or really any kind of lies. On average, people perform at about 54% accuracy.”
“They also used a lot of hand gestures. We call them illustrators.”
“So in my lab right now, I've become increasingly fascinated with how we respond to people who are lying to us when we're not suspicious at all.”
“We studied this with the pleaders that we talked about. So people who went on TV and asked for help trying to find their missing loved one, half of whom were actually responsible for killing that person they pleaded to find.”
“And we find really consistently that people are more willing to donate money to the genuine pleaders relative to the deceptive ones, and they feel more kind of sympathy and compassion for them, even though they're not, you know, they don't know that some of these folks are actually like deceptive murderers.”
“If you want to give it a go, head to whisperflow.ai/steven to download it right now and give it a try.”
“The more lies that people tell, they just, you know, self-report on how much they lie in their everyday life, the more lonely they feel.”
Are you dealing with a master manipulator? Learn how to identify the hidden red flags of liars, psychopaths and narcissists before they cause lasting damage. Dr. Leanne ten Brinke, a renowned psychologist and director of the Truth and Trust Lab at the University of British Columbia, breaks down the science of deception and toxic behavior. Drawing from her extensive peer-reviewed research and her eye-opening book, Poisonous People, she shares practical, evidence-based strategies to help you recognize dark personality traits and protect your mental well being. In this episode, she explains: ■ The Warning Signs: How to spot the early behavioral red flags of the "Dark Tetrad" (psychopathy, narcissism, Machiavellianism, and sadism) before you get hurt. ■ The Manipulation Playbook: The exact psychological tactics toxic individuals use to control and deceive others, including what gaslighting actually means. ■ The Lie-Detector Myth: Why relying on eye contact, fidgeting, and body language is actually a terrible way to catch a liar. ■ The Two Faces of Narcissism: How to identify the different types (including why one completely crumbles at the slightest criticism), and the devastating toll of working for a psychopathic boss. ■ Defense Strategies: Proven techniques to outsmart dangerous personalities, set ironclad boundaries, and dramatically improve your life. Chapters 00:00:00 Intro 00:02:21 Why This Research Into Psychopathy Matters 00:02:58 Why Psychopathy Is Getting More Attention 00:04:05 Can You Spot a Psychopath in 5 Seconds? 00:05:30 How Facial Expressions Reveal What People Really Feel 00:08:56 Can You Predict If Someone Is Guilty? 00:09:59 Three Signs Someone Might Be Lying 00:13:46 Can Anyone Learn to Spot a Liar? 00:20:29 Why the Eye Contact Myth Gets Body Language Wrong 00:21:53 Psychopathy, Narcissism, Machiavellianism and Sadism Explained 00:34:49 The Biggest Myths About Psychopaths Debunked 00:36:28 How Common Are Dark Personality Traits? 00:38:05 Are Dark Traits Caused by Genetics or Childhood? 00:41:13 How to Increase Your Chances of Becoming a Good Parent 00:44:23 What Happens Inside a Psychopath's Brain? 00:46:06 Can Dark Personality Traits Be Cured? 00:49:30 Ads 00:51:32 Why Being Lied to Makes You Feel Distant 00:57:14 Can You Be Warm and Competent at the Same Time? 00:59:57 Why Dark Personality Traits Don't Get You Ahead 01:04:41 How to Spot Red Flags in Dating Profiles and Relationships 01:12:44 Ads 01:13:52 Why Setting Boundaries Matters More Than You Think 01:17:05 7 Rules for Dealing With Dark Personalities 01:19:07 How to Spot Gaslighting and Coercive Control 01:23:29 7 Rules for Dealing With Dark Personalities Continued 01:30:37 How to Communicate With Dark Personalities 01:33:28 How to Become a Better Detective of People's Cues 01:34:00 Why You Should Avoid Face to Face Negotiations 01:37:53 Three Mistakes People Make With Dark Personalities 01:39:37 How the 10% Do the Damage and the Biggest Lie About Success 01:41:10 What Is the Greatest Lie We've All Been Told? Independent Fact Check: https://stevenbartlett.com/wp-content/uploads/2026/09/DOAC-Leanne-ten-Brinke-Independent-Research-Further-Reading_final.pdf Follow Leanne: YouTube - https://link.thediaryofaceo.com/EkuzZ3K Instagram - https://link.thediaryofaceo.com/2MRcXEs TikTok - https://link.thediaryofaceo.com/EL537g7 You can purchase Leanne’s book, ‘Poisonous People: Psychopathy, Narcissism, Manipulation, Sadism: How to Resist Them and Improve Your Life’, here: https://link.thediaryofaceo.com/3lYxLjb Learn more from the online resources, here: Assess your own levels of (light and) dark traits - https://link.thediaryofaceo.com/1OsGuG0 Get support - https://link.thediaryofaceo.com/4F2i8Oj The Diary Of A CEO: ◼ Join DOAC circle here - https://doaccircle.com/ ◼ Buy The Diary Of A CEO book here - https://link.thediaryofaceo.com/BWjLTZK ◼ Shop The Diary Of A CEO collection: https://thediary.com/collections/shop ◼ Get email updates - https://bit.ly/diary-of-a-ceo-yt ◼ Follow Steven - https://g2ul0.app.link/gnGqL4IsKKb Sponsors: Fiverr - https://fiverr.com/diary and get 10% off your first order when you use code DIARY Wispr - Get 14 days of Wispr Flow for free at https://wisprflow.ai/steven
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