Skip to content
The Mel Robbins PodcastThe Mel Robbins Podcast

Harvard Business School Professor: This One Research Study Will Change Your Life and Career

Order your copy of The Let Them Theory 👉 https://melrob.co/let-them-theory 👈 The #1 Best Selling Book of 2025 🔥 Discover how much power you truly have. It all begins with two simple words. Let Them. — Today's episode is going to completely change the way you think about every conversation you've been too afraid to have. Ever wonder why your relationships feel surface level, even after years? Why you feel lonely, even when you're surrounded by people? Why you say “I’m fine,” even when you’re not? Why some people earn trust instantly, while you struggle to be taken seriously? Harvard Business School’s Dr. Leslie K. John, a behavioral scientist who has spent decades studying honesty, trust, privacy, regret, and decision-making, is here to teach you the answer – and it's not what you think. In today’s episode, you will learn the surprising science of honesty, vulnerability, and human connection. Her research has found why the things you don't say are quietly hurting your health, your relationships, and your career – and exactly what to do about it. For years, the advice has been: don't overshare, at work or with friends. Keep things private. But decades of Harvard research say that advice is backwards. Dr. John's findings are shocking, and reveal that the real problem, the one deepening loneliness and costing you the career and connections you want, is undersharing. In this episode, you’ll learn that 89% of people would choose to work with, trust, and hire someone who reveals something difficult, even something unflattering, over someone who stays quiet. That keeping secrets doesn't just feel heavy. Research shows it lowers cognitive performance, IQ, and is linked to measurable declines in physical health. That one of the most common deathbed regrets is “I wish I had shared my feelings more.” That you can use The Disclosure Matrix, which is the exact decision-making tool Dr. John teaches at Harvard Business School, so you always know when to speak up and when to stay quiet. And, you’ll learn the 2-sentence framework that makes any hard conversation easier to start. If you've ever held something back because you didn't want to make things awkward, said "I'm fine" when you weren't, or wished your relationships felt deeper and more honest, this episode will change the way you communicate forever. For more resources related to today’s episode, click here for the podcast episode page: https://www.melrobbins.com/episode/episode-392/ Follow The Mel Robbins Podcast on Instagram: https://www.instagram.com/themelrobbinspodcast I’m just your friend. I am not a licensed therapist, and this podcast is NOT intended as a substitute for the advice of a physician, professional coach, psychotherapist, or other qualified professional. Got it? Good. I’ll see you in the next episode. In this episode: 00:00 Intro 01:51 Skills That Will Change Your Life 04:21 Should You Should Be Sharing More? 19:03 Understanding Introversion & Shyness 25:19 How To Decide What To Share And What Not To Share 31:24 The Health Cost of Under-Sharing 34:39 Powerful Tools to Process Your Emotions 40:57 How To Deeply Express Yourself In Conversation 44:46 The Cost of Keeping Secrets 47:55 The Harvard Business School Disclosure Matrix Explained 58:47 Why You Should Be Open With Your Feelings — Follow Mel: Instagram: https://www.instagram.com/melrobbins/ TikTok: http://tiktok.com/@melrobbins Facebook: https://www.facebook.com/melrobbins LinkedIn: https://www.linkedin.com/in/melrobbins Website: http://melrobbins.com​ — Sign up for Mel’s newsletter: https://melrob.co/sign-up-newsletter A note from Mel to you, twice a week, sharing simple, practical ways to build the life you want. — Subscribe to Mel’s channel here: https://www.youtube.com/melrobbins​?sub_confirmation=1 — Listen to The Mel Robbins Podcast 🎧 New episodes drop every Monday & Thursday! https://melrob.co/spotify https://melrob.co/applepodcasts https://melrob.co/amazonmusic — Looking for Mel’s books on Amazon? Find them here: The Let Them Theory: https://amzn.to/3IQ21Oe The Let Them Theory Audiobook: https://amzn.to/413SObp The High 5 Habit: https://amzn.to/3fMvfPQ The 5 Second Rule: https://amzn.to/4l54fah

Mel RobbinshostDr. Leslie K. Johnguest
May 4, 20261h 8mWatch on YouTube ↗

CHAPTERS

  1. Oversharing as a learnable skill that upgrades relationships, influence, and wellbeing

    Mel Robbins introduces Harvard Business School professor Dr. Leslie K. John and the core claim: “revealing wisely” is a skill that can be practiced. Dr. John previews how thoughtful self-disclosure boosts emotional intelligence, reduces rumination, and improves work outcomes like influence and leadership presence.

  2. Why openness pays: trust-building disclosure in business and leadership

    Dr. John persuades skeptical executives by speaking their language—money and performance. She shares research showing that revealing slightly sensitive information increases trust, which can improve customer behavior and employee preferences for leaders.

  3. The “devil you know” study: people prefer revealers over withholders

    A pivotal set of experiments flips common intuition: refusing to answer makes you seem less trustworthy than admitting a negative truth. Dr. John explains that salient withholding triggers suspicion and contempt, even when non-disclosure could be principled.

  4. We’re wired to disclose: brain reward and stress-release evidence

    Dr. John describes research showing self-disclosure activates pleasure centers in the brain, suggesting intrinsic rewards for revealing. She adds developmental evidence that outward emotional expression reduces physiological stress—and how cultural conditioning teaches many (especially boys) to suppress.

  5. The hidden costs of undersharing: missed connection in love, friendship, and work

    Dr. John defines the “life of an undersharer” as one of missed opportunities and shallow relationships. She clarifies that talkativeness (extroversion) is not the same as being revealing, and introduces the idea of “disclosure flexibility.”

  6. Spotting your patterns: the relationship audit beyond logistics

    Mel and Dr. John discuss how couples can appear connected while living “sequestered” internal experiences. They emphasize auditing whether conversations are mostly logistics versus feelings, and how greater emotional disclosure reduces needless conflict and assumptions.

  7. A day in the life of disclosure decisions: the ping-pong ball jar demo

    Dr. John makes invisible withholding visible by illustrating how many thoughts and feelings go unsaid by mid-morning. The exercise shows how defaulting to silence can create misunderstandings, missed support, and unnecessary stress at home and work.

  8. Health and performance costs of secrecy and chronic withholding

    The conversation shifts to the measurable downsides of concealment. Dr. John explains how secrets fuel rumination, reduce cognitive capacity, and correlate with worse wellbeing and physical health outcomes.

  9. Tools to process emotions: building vocabulary with the emotions wheel

    Dr. John shares her own journey from “emotional illiteracy” to clarity using an emotions wheel. She explains how naming feelings—starting simple (good/bad; high/low arousal)—improves self-understanding and communication.

  10. Two-sentence practice: replace “fine” with “I feel…” and “I need…”

    Dr. John offers a practical script for everyday conversations, especially with partners. The goal is small, doable openness that invites care and reduces defensiveness, while still allowing for boundaries when you’re too exhausted to talk.

  11. From small talk to real connection: one layer deeper + better questions

    Addressing loneliness, Dr. John explains how superficial interactions can leave you “socially full but emotionally malnourished.” She teaches a conversational move: connect observations to meaning, reveal a bit, then ask a question that invites reflection.

  12. Secrets vs. privacy: resolving the loop with the right ‘how/when/to whom’

    Dr. John distinguishes healthy boundaries from damaging secrecy. Secrets often persist as unresolved disclosure decisions; even partial disclosure (to a journal, therapist, or trusted person) can reduce rumination and clarify next steps.

  13. The Harvard Business School Disclosure Matrix: making better reveal/withhold decisions

    Dr. John teaches her four-quadrant framework for disclosure decisions: risks and benefits of revealing, and risks and benefits of not revealing. The tool corrects a common bias—over-focusing on the risks of revealing—so people can choose more intentionally.

  14. Why feelings persuade: emotional disclosure as credible data + leadership ‘catalyst confessions’

    Dr. John explains why emotion can be more persuasive than logic: it’s harder to fake, riskier to share, and therefore more credible. She shares a personal story of crying during a hostile academic talk, reframing it as values-based disclosure that can shift culture—similar to public “catalyst confessions.”

Get more out of YouTube videos.

High quality summaries for YouTube videos. Accurate transcripts to search & find moments. Powered by ChatGPT & Claude AI.

Add to Chrome