This book gives readers something medicine has never fully offered: a blueprint to understand the emotional, biological, and experiential “root story” behind disease.
Kevin Hoffarath MD, IFMCP – 22 January 2026
The Back Flap
What if disease isn’t the body failing, but the body trying to be heard?
For decades, we’ve been taught to see illness as something to fight, suppress, or fix. But what if symptoms are not random? What if they are the body’s way of expressing the beliefs, memories, and identity patterns we carry?
In The Disease of Belief, Kevin Hoffarth, MD, IFMCP reveals how our biology is shaped by the meaning we assign to our experiences.
Through real clinical stories, neuroscience, and a deep understanding of human identity, Dr. Hoffarth shows how emotional patterning, stress physiology, and subconscious beliefs can translate directly into physical symptoms — and how’s healing begins when we learn to interpret those messages.
This book does not ask you to “think positive,” ignore science, or blame yourself for illness. It invites you to listen, to understand the why beneath the what.
When we shift the beliefs that shape our inner world, the body often responds in ways we once believed were impossible.
Healing becomes not a battle, but a remembering.
About the book
What is the book about?
The most powerful question a patient or physician can ask is: “Why did this person get this disease? What is the origin story?”
The Disease of Belief introduces a new paradigm called Biological Decoding, a lens that connects the most important scientific breakthroughs of the 21st century—epigenetics, neuroplasticity, the Human Genome Project, and even quantum physics—into one coherent framework.
This book gives readers something medicine has never fully offered: a blueprint to understand the emotional, biological, and experiential “root story” behind disease. Anyone who reads it will walk away with a deeper understanding of their own health patterns and a far more effective way to reverse-engineer disease than Traditional or Functional Medicine currently provides.
When did you start writing the book?
It began in November 2023 during two full eight-hour days with my editor, Ami McConnell, in a Nashville coffee shop. I poured out ideas like a firehose while she captured the early template that would become the foundation of this book.
How long did it take you to write it?
I completed the full manuscript in October 2025. I rewrote it several times. In the final months, I refined and distilled many complex ideas—quantum physics, consciousness, gene expression—into digestible, practical, bite-sized teaching. My goal was to make something scientifically rigorous yet readable to anyone willing to think differently.
Where did you get the idea from?
This book is the intersection of my life’s story and the stories of tens of thousands of patients I’ve worked with since 2000.
Growing up in a home marked by mental illness, studying psychology in college, then medicine and residency gave me the scientific foundation. But it was the patients who shaped the lens.
My career has evolved “720 degrees”—from traditional medicine, to the expansive world of Functional Medicine, and finally to the pioneering mind-body work of Biological Decoding. This book is the synthesis I wish every patient could access.
Were there any parts of the book where you struggled?
Yes and no. When you truly know a subject, teaching becomes art. The challenge was translating mind-bending concepts into something people can see in their daily lives—linking abstract science to the physical reality of symptoms, patterns, and disease. It’s easier in one-on-one care. Doing it on a wide scale is the work of this book.
What came easily?
The passion. Once I saw the truth behind Biological Decoding, I couldn’t unsee it—and I felt compelled to share it widely.
Are your characters entirely fictitious or have you borrowed from real world people you know?
Every story is real. I changed names and sometimes kept genders neutral to protect identities. I also share elements from my own health journey and from witnessing the unfolding stories of my family across five decades.
We all know how important it is for writers to read. Are there any particular authors that have influenced how you write and, if so, how have they influenced you?
Not so much authors as thinkers. In medicine, the voices that challenge convention—those who tug at the edges of what we believe—shape me the most. Anyone who pushes me out of my comfort zone becomes a teacher, and discomfort is often where the deepest learning happens.
Do you have a target reader?
The first book was written for my “Reading Avatar”—the person walking into my practice for the first time, trying to understand how I think.
This book is for anyone who wants to understand the emotional, biological, and energetic architecture of their illness. If someone wants to read their own “book of disease” and finally make sense of it, they are my reader.
About Writing
Do you have a writing process? If so can you please describe it?
I write intuitively. After meditation, a workout, and coffee—when both halves of my brain sync—I let the ideas flow. I write best in coffee shops with ambient noise (a gift to my ADD brain). The book began with two intense days of dictating ideas to my editor, who turned that into a template.
Do you outline? If so, do you do so extensively or just chapter headings and a couple of sentences?
I start with structure but rarely end there. I meditate on the core concepts I want the reader to walk away with—ideas they can implement immediately. I imagine someone reading the entire book on a flight from New York to California and landing with tools that change their life.
Do you edit as you go or wait until you’ve finished?
Constantly. Sometimes obsessively. I can spend weeks polishing a single chapter.
Did you hire a professional editor?
Yes. After discarding my first three manuscripts of book one, I found the perfect partner in Ami McConnell. She understands how to translate complex science and thousands of patient experiences into a coherent narrative without diluting the truth.
Do you listen to music while you write? If yes, what gets the fingers tapping?
I prefer the soundtrack of a busy Starbucks. Background chatter sharpens my focus.
About Publishing
Did you submit your work to Agents?
My first book was entirely self-published—and released the week after the pandemic began. With this book, I leaned on my editor and her expanded team to take it to a much larger audience.
What made you decide to go Indie, whether self-publishing or with an indie publisher? Was it a particular event or a gradual process?
Trust. Working with Ami McConnell taught me that creativity blossoms without rigid deadlines or constraints. She let me unfold as a writer, which made partnering with her team again an easy choice. It was a gradual process. Trust builds layer by layer—with your team, your process, and your voice.
Did you get your book cover professionally done or did you do it yourself?
Anna Skates-Hailey designed my book cover. The experience was night and day compared to book one. With my first book, I hired someone, but my wife ultimately created the cover herself.
With Anna, I provided concepts and instincts, and she returned four rounds of a dozen samples each. When I saw the final design, I knew immediately: That’s my book.
Do you have a marketing plan for the book or are you just winging it?
Yes. I’m working with publicist Sara Wigal and her team, who are extraordinary in their detail and work ethic. My strength is not social media—I’ve tried. My zone of truth is long-form conversation: podcasts, radio, TV, and thought-leadership writing. And I’ve had a lifelong dream of seeing my book in Barnes & Noble—the place where I spent countless hours studying medicine in my early years.
Any advice that you would like to give to other newbies considering becoming Indie authors?
Write it yourself. Don’t outsource your truth. Don’t let AI write your book. Don’t hand it to a ghostwriter. Write from your heart, write what you know, and then sit with the book in the field of the quantum as you meditate. Let the ideas arrive. Let the book come through you. That’s where the magic is.
About You
Where did you grow up?
Sacramento, California. I studied in the San Francisco Bay Area and have since lived on the East Coast, Midwest, South, and even abroad for nearly three years collectively.
Where do you live now?
My wife, daughter, and I moved from South Lake Tahoe to Austin, Texas, in 2011, where I founded BioFIT Medicine. After our family was hit hard by COVID, we moved to Houston in 2022 and have loved it ever since.
What would you like readers to know about you?
My career is my hobby. I’m endlessly fascinated by the human body, the mind, and how they align. Curiosity has shaped every personal and professional choice I’ve made.
I’ve pursued health optimization since my early teens when I dreamed of becoming a professional tennis player. Today, I find joy in the simplicity of life—being a girl dad, listening to people’s stories, learning and writing in coffee shops, and showing up as the husband, physician, brother, and friend I choose to be every day.
What are you working on now?
I’ve just completed The Disease of Belief and am already sketching ideas for book three. I don’t decide where it goes—the evolution of human consciousness does. My aim is not to accumulate more knowledge but to gather and distill wisdom worth sharing.
End of Interview:
Get your copy of The Disease of Belief from Amazon US or Amazon UK.
