In today’s world of constant change, uncertainty often feels like the enemy. We chase control, perfection, and predictability—yet end up exhausted and anxious when things inevitably shift.
In this episode of the Hello Moxie Podcast, host Nicole Donnelly sits down with Dr. Sherry Yellin, founder of The Yellin Group and author of the upcoming book The Science of High-Performance Leadership, to explore how neuroscience can help us lead—and live—with more clarity, courage, and compassion.
The Brain Under Threat
Dr. Yellin has spent over two decades helping leaders and teams understand how the brain works under pressure. She explains that when the brain perceives a negative threat, it instantly moves into survival mode: fight, flight, or—what she calls—the other “F-word”: flock.
“When your brain feels safe, you see collaboration, perspective, and willpower. But when it feels threatened, people get defensive, overly committed to being right, and seek validation from others who agree with them,” says Dr. Yellin.
She notes that negative threat typically has three ingredients: uncertainty, lack of control, and anticipation of loss.
From global crises to daily workplace stress, when all three collide, our decision-making and empathy collapse.
Her advice? Don’t ignore the signals—get curious about them.
“If uncertainty or confusion is the problem, clarity is the solution,” she explains. “Recognize what you’re feeling, identify where you need clarity, and go get it. Your brain calms down when it knows what to do next.”
The Fear of Being Uncertain
Dr. Yellin playfully calls this tension “phobo”—the fear of being uncertain.
It’s a universal experience that shows up in both personal and professional life.
Even high performers, she says, can become addicted to chaos because it feels familiar.
“We’ve equated hard with successful,” she says. “If it’s not hard, our brains think we’re not doing it right.”
This insight is powerful for anyone who constantly feels like they must hustle harder to prove their worth. Yellin challenges us to ask a simple but profound question:
“What would it look like if this didn’t have to be hard?”
By reframing how we define success, we make space for joy, ease, and creativity to emerge.
The Courage Companion
Both Nicole and Sherry shared moments of vulnerability in their own journeys—times when self-doubt, fear, or exhaustion crept in.
For Dr. Yellin, that breakthrough came when she hired a coach who told her,
“Borrow my belief until you can have your own.”
That phrase became a cornerstone of her philosophy on leadership and growth.
We all need what she calls a “courage companion”—someone who holds belief for us when we can’t hold it ourselves.
It’s not weakness to ask for help; it’s wisdom.
“When you have a courage companion,” says Yellin, “they create space for you to see what you can’t see. Because the fish in the water doesn’t know it’s in water.”
Beliefs That No Longer Fit
Dr. Yellin compares outdated beliefs to old clothes hanging in the closet:
“They used to fit, but they don’t now. Just because you wore it in the ’80s doesn’t mean it belongs today.”
She encourages leaders to perform regular “belief clean-outs”—identifying which mindsets still serve us and which ones were inherited generations ago and no longer reflect who we’ve become.
This process of reflection and journaling, she says, is non-negotiable.
“Journaling is strength training for your mind. You can’t just think about clarity—you have to write your way there.”
The Power of Self-Trust
A recurring theme in the episode is believing you are enough.
Dr. Yellin and Nicole discuss how feelings of “not enough” often lead women to overwork, overcompensate, or rely too heavily on others to validate their vision.
“What would you be doing right now if you believed you were enough on your own?” Dr. Yellin asks.
For many listeners, that question might stop you in your tracks.
The truth is, we already have everything we need—we just have to trust ourselves enough to act on it.
Eat the Mystery
Perhaps the most beautiful takeaway from this episode comes from the idea of “eating the mystery.”
Dr. Yellin shares that the word moxie has deep roots in the Algonquin language, meaning wisdom or deep dark water.
She connects this to the story of manna in the Old Testament—where the people gathered food for only one day at a time, trusting there would be enough tomorrow.
“They ate the mystery,” she says. “They ate the uncertainty. And they trusted that what they needed would come.”
It’s a profound reminder that courage isn’t about eliminating fear—it’s about moving forward with it.
Key Takeaways
- If uncertainty is the problem, clarity is the solution. Identify what’s confusing you and seek answers.
- Ease is not the enemy of success. You can thrive without making everything hard.
- Find your courage companion. Growth is faster with support and accountability.
- Challenge old beliefs. Just because something feels true doesn’t make it so.
- Eat the mystery. Embrace uncertainty as a sign you’re growing, not failing.
Final Thought:
As Dr. Yellin reminds us, “When the gremlins show up, thank them. They’re proof you’re growing.”
So, take a deep breath, eat the mystery, and lead with Moxie.
