Harvard Business School Professor: This One Research Study Will Change Your Life and Career
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In this powerful episode of The Mel Robbins Podcast, host Mel Robbins welcomes Dr. Leslie K. John, a Harvard Business School professor and leading behavioral scientist, to discuss groundbreaking research on the hidden dangers of undersharing. Contrary to popular belief, Robbins and John reveal that the real risk isn't oversharing—it's withholding. Through a series of compelling studies, John demonstrates that revealing vulnerable truths—like admitting failures, fears, or personal struggles—builds trust, strengthens relationships, and enhances well-being. The episode unpacks how undersharing leads to emotional isolation, mental fatigue, and missed opportunities in both personal and professional life. John shares practical tools, such as the 'I feel, I need' framework and the 'one layer deeper' conversation technique, to help listeners cultivate disclosure flexibility. The conversation culminates in a profound call to action: share your feelings. Drawing on research from Cornell and palliative care, Robbins emphasizes that regret near the end of life is not about what we did, but what we didn’t say. The episode ends with a heartfelt message of connection and a reminder that vulnerability is not weakness—it’s the foundation of authentic human connection.
Undersharing—holding back emotions and truths—is more damaging than oversharing and leads to isolation, stress, and missed opportunities.
Revealing vulnerabilities (like failures or fears) builds trust and makes you more likable, influential, and happier.
The 'I feel, I need' sentence framework is a simple, powerful tool to express emotions and needs without over-explaining.
Emotions are data—sharing them is more persuasive than logical arguments, especially in leadership and relationships.
Secrets and withheld truths create mental burdens that lower focus, increase rumination, and harm physical health.
…and 3 more takeaways available in PodZeus
The Hidden Cost of Silence
“What if you're just terrified of oversharing? You obsess over saying too much. You replay conversations because you're worried that you said the wrong thing or you crossed a line or people are going to judge you. Most of us think the danger is in oversharing... But today's guest says that's the wrong fear.”
The Science of Revealing: Why Trust Starts with Vulnerability
“When you think about it, revealing something sensitive to someone is showing that you trust the person because I'm saying the thing and I'm like relinquishing control to the universe and I'm implicitly saying, I trust you.”
The Brain, the Body, and the Power of Expression
“The children who let more out on their faces, they were physiologically calmer. Meaning their fingers weren't sweaty. Through their facial expression and reacting and revealing, you were processing the stressful feelings you had.”
The Day in the Life of Disclosure Decisions
John uses a vivid metaphor: a mason jar filled with yellow ping pong balls representing unsaid thoughts. From waking up feeling awful to driving with a concerned father, from work stress to not asking for help—each moment is a disclosure decision. The episode reveals how the constant suppression of truth creates emotional weight. The key insight? You don’t need to say everything. But you do need to be intentional about when and how you open up.
How to Be Open Without Overwhelming Others
Robbins and John offer practical tools: the 'I feel, I need' framework, the 'one layer deeper' conversation technique, and the importance of emotional vocabulary. They emphasize that openness is not about being a talker—it’s about being a flexible sharer. The episode also explores the difference between privacy (a boundary) and secrets (an unresolved loop). The takeaway? You can be guarded when needed, but don’t let silence become your default.
“The most common regret of dying people is not having shared their feelings more—make it a priority now.”
“When you think about it, revealing something sensitive to someone is showing that you trust the person because I'm saying the thing and I'm like relinquishing control to the universe and I'm implicitly saying, I trust you.”
“Secrets are not inert. They are preoccupying. They represent an unresolved loop in your mind.”
Host
Guest
Dr. Leslie K. John
person
Mel Robbins
person
Harvard Business School
organization
Expedia
brand
Emotions Wheel
product
Magic Johnson
person
Commonwealth Bank of Australia
organization
Carl Pillemer
person
Bronnie Ware
person
Ryan Buell
person
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