368: How Neuropsychology Can Accelerate Your Results | Dr. Shannon Irvine

Dr. Shannon Irvine’s Journey to Authorship

In this episode of the Authors Who Lead podcast, I welcome Dr. Shannon Irvine, an accomplished neuropsychologist, entrepreneur, and founder of the SINC Neurocoach Models.

This riveting conversation peels back the curtain on Dr. Shannon’s journey from idea gestation to book launch, giving us an inside look at the neuroscience-driven method she shares in her new book, The 67-Day Year. Her work blends scientific rigor with practical wisdom and timeless principles, helping anyone—from new moms to high-powered CEOs—unlock levels of achievement they once thought impossible.

Why Write a Book? The Call to Serve Beyond Programs

For Dr. Shannon, the spark to write didn’t come from a lifelong dream to be an author, but from a desire to reach those who might never walk through the doors of her coaching programs. “I just really want to get this in the hands of everybody,” she explains. The methods she developed changed her own life—transforming chronic stress into “automated success”—and she recognized the power of a book to extend that impact beyond her typical clientele.

This calling built gradually, evolving from an idea into a movement. The turning point came when the urge to share her discoveries could no longer be ignored—she knew a book could reach listeners she’d never meet, like “the mom with a brand new baby to the empty nester,” offering them practical tools for change.

The Science Behind the 67-Day Year: What Makes Change Stick?

One of the pivotal points Dr. Shannon lays out is the neuroscience foundation behind her 67-Day Year. She dispels the old myth of “21 days to make a habit,” and explains that true change—in our neural circuitry—takes about 67 days. This time frame is backed by studies on how long it takes to build, erase, and automate neural pathways so they work in our favor.

She breaks down her process into three steps: Clarify (get crystal clear on what you want), Erase (identify and remove subconscious patterns that sabotage you), and Automate (hardwire new success pathways so they run on autopilot). Since 90% of our daily decisions are controlled by the subconscious mind, we need to go beyond surface-level tactics and get to the root of self-sabotage.

Her approach is refreshingly practical. Rather than requiring deep dives into childhood trauma or endless navel-gazing, her method is actionable and straightforward. “You just have to start to recognize what those [limiting patterns] are,” she says, “and know that you can’t outperform or out-hustle that subconscious patterning. But it’s so simple to remove those blocks.”

Authors and Entrepreneurs: Overcoming the Mental Barriers to Creating

This episode is full of insights for anyone struggling to bring a vision—as an author or entrepreneur—to life. Dr. Shannon and I talk about how the harshest obstacles are rarely technical, but mental. Whether you’re writing a book or building a business, the real challenge is the inner narrative: the doubts, fears, and old stories that stop progress before it begins.

Dr. Shannon’s own writing process is a great example of what it means to work with your natural strengths. She realized she was a verbal processor—able to “write the book verbally”—and wasn’t served by traditional models of authoring. By honoring her creative style and making adjustments (like dictating drafts during beach getaways), she moved past mental blocks and finished her book.

Is It Worth It? How a Book Builds Your Business and Helps Others

While some may wonder if writing a book really helps their business, Dr. Shannon is clear: the value is both personal and professional. The book serves as a beacon, guiding people who may only interact with her through its pages, while also opening doors for deeper engagement—like coaching or consulting.

To her, writing a book is a calling. “If you can’t shut up about the things that you’re doing… it’s not just a ‘should’—it’s a ‘must,’” she says. She urges aspiring authors to flip their fear into service: “If you’ve gone through something and somebody is suffering that could use that, then I feel like that’s the call… that’s the call of the author.”

Conclusion: Your Invitation to Rewire for Success

Dr. Shannon’s 67-Day Year is a neuroscience-backed roadmap for anyone ready to break through limitations and reach their goals. With practical steps, valuable bonuses (like a free audiobook and workbook for a limited time), and a deep commitment to service, her book is more than a tool—it’s a movement.

If you’re a leader, entrepreneur, or aspiring author still waiting for the right moment, Dr. Shannon’s message is clear: lean in, rewire your brain, and start creating the impact you were meant for. Your story—and your success—matter.

Join us again next week for more captivating insights from influential authors and publishing experts. Remember to subscribe to Authors Who Lead and visit our website for more show notes and past interviews.

That’s all for this week. If you have a message inside of you that needs to be written, today is the day to start. Don’t delay—take action.