Why do so many successful people achieve everything they thought they wanted… and still feel unfulfilled?

In this episode, I sit down with Paul J. Zak, one of the world's leading researchers on trust, happiness, human connection, and the neurochemistry that drives our relationships.

Paul has spent decades studying oxytocin, the biology of trust, and what actually creates happiness, resilience, and fulfillment. His research has taken him everywhere from Fortune 500 boardrooms to remote tribes around the world, uncovering a surprising truth:

The things most people chase—achievement, control, status, and success—are often not the things that create lasting happiness.

Instead, the science points toward something much simpler—and much more human.

We explore the role of relationships, purpose, emotional fitness, marriage, friendship, leadership, parenting, and why meaningful connection may be the single greatest predictor of a thriving life.

About Paul J. Zak

Paul J. Zak is a neuroscientist, entrepreneur, professor, and pioneer in the field of neuroeconomics whose work focuses on trust, happiness, human connection, and performance.

Often referred to as "Dr. Love" for his groundbreaking research on oxytocin, Paul has published more than 200 scientific papers and is ranked among the world's most cited scientists. His work has transformed how leaders, organizations, and individuals understand trust, cooperation, empathy, and wellbeing.

He is the author of several bestselling books, including Trust Factor, Immersion, and The Little Book of Happiness.

Key Takeaways

Why the quality of your relationships may determine more of your happiness than anything else
The science behind trust, oxytocin, and human connection
Why achievement alone rarely creates lasting fulfillment
How emotional fitness can be trained just like physical fitness
The importance of having people in your life you can call at 3 a.m. during a crisis
Why leaders should focus on coaching, trust, and purpose rather than control and micromanagement
How challenge, adventure, and shared experiences strengthen relationships and marriages
Why meaningful friendships become even more important as we age
The connection between purpose, service, community, and long-term wellbeing
Why happiness is less about what you achieve and more about who you experience life with