Book cover titled "Just One Heart: A Cardiologist's Guide to Healing, Health, and Happiness" by Jonathan Fisher MD, FACC. Features a colorful heart-shaped flower with layered petals in rainbow colors on a white background.

I spent years treating heart disease — before learning what it really means to care for one.

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Modern medicine excels at diagnosing and treating disease, yet many of the forces that shape heart health never fit neatly into a chart or prescription. Stress, emotional strain, social disconnection, and loss of meaning quietly influence how the heart functions over time.

Just One Heart brings these dimensions back into view, offering a science-based, human-centered framework for understanding health, leadership, and life under pressure — without fragmenting one from the others.

Why This Book Matters

Our culture rewards endurance, speed, and productivity — often at the expense of the very systems that sustain us. We’re taught to push, perform, and persist, but rarely how to regulate stress, recover wisely, or stay connected to what matters while carrying responsibility.

The costs take their toll: rising burnout, strained relationships, preventable illness, and leadership that becomes reactive under pressure. Not because people don’t care — but because they’ve been given incomplete models for how human beings actually function.

Just One Heart addresses this gap by bringing together medicine, neuroscience, psychology, and contemplative practice into a coherent, whole-person framework — one designed for real life.

What This Book Offers

A smiling man with glasses and a beard holding a book titled "Just One Heart: A Cardiologist's Guide to Healing, Health, and Happiness" by Jonathan Fisher, MD, FACC, standing in a room with wooden and tiled walls.

Just One Heart is a practical, science-based guide for navigating stress, responsibility, and leadership without fragmenting health, performance, and meaning.

Rather than offering quick fixes or motivational advice, the book integrates insights from cardiology, neuroscience, psychology, and contemplative practice to show how the heart and nervous system respond to pressure — and how we can work with those systems more wisely.

Throughout the book, readers are invited to reconnect physical health, emotional regulation, relationships, and purpose into a single, coherent approach to living and leading under pressure.

Why I Wrote Just One Heart

A brief reflection on the personal and professional experiences that shaped the book.

Who This Book Is For

This book is for:

  • People carrying sustained responsibility under pressure

  • Leaders navigating stress without wanting to burn people out

  • Clinicians and professionals who care deeply and feel the cost

  • Anyone sensing that success without wholeness isn’t sustainable

Recognition

Honored for contributions to health, leadership, and well-being.

⭐ 4.8 average rating · 100+ verified reviews

2025 IBPA Book Award (Health & Fitness)

2025 IPPY Award (Healthcare/Medicine)

Silver book award medal with the initials 'IP' in the center. The medal has inscriptions around the edge, including 'Recognizing Excellent In Independent Publishing', 'Book Awards', and 'Silver'.
Silver badge with a black wheat emblem in the center, surrounded by the text 'IBPA Book Award Winner Silver'.

What Readers Are Saying

Reflections from clinicians, leaders, and readers living with pressure.

Grounded, evidence-based, and deeply human.
— Physician reader
A bridge between medicine, meaning, and everyday life.
— Healthcare professional
Practical insights I continue to use long after finishing the book.
— Executive reader

Just One Heart exceeded my expectations. It sparked meaningful conversations in our book group and offered insights we could apply immediately, along with bigger themes that stayed with us long after the final chapter.

Victoria Del Prato Cummings, United States

This book beautifully weaves science, personal experience, and wisdom. It’s not just about managing disease, but about cultivating connection, resilience, and purpose in everyday life.

Derrick, United States

As a medical student, this book reminded me why I chose this path. The compassion, clarity, and practical tools will guide me both personally and professionally for years to come.

Noah S., United States

A rare integration of clinical science and human insight. The practices and timeless qualities of the heart are relevant far beyond medicine.

Gus Castellanos, MD

More reader reflections available on Amazon.

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Curious whether this approach resonates?

Download the opening chapter of Just One Heart.

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A science-based, human-centered guide to living and leading with steadiness, clarity, and care under pressure.

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Available in print, digital, and audio