“A must-read for anyone looking to understand the profound impact of breathing on health and performance. This isn’t just another wellness book; it’s a foundational guide”
— Patrick McKeown
Author of The Oxygen Advantage
Let’s be honest: the world of breathwork has become a bit… loud. Between the “ice-cold” challenges and the promises of instant enlightenment, it’s easy to feel like you’re doing it wrong. Or worse, that your breathing is “broken” because you can’t keep up with the intensity.
Breathwork Exposed isn’t about pushing harder. It’s the science-based antidote to the trends. It’s a grounded, human look at how your physiology actually works—and how you can reclaim control without the hype.
We didn’t write this for the “gurus.” We wrote it for the people who need tools that actually work in the real world:
This isn’t just a collection of techniques; it’s a map to your own internal state. We skip the corporate clichés and get straight to the mechanics of how you function.
We believe breathwork is a tool, not a religion. It should make your life easier, not give you another thing to “crush” on your to-do list. Whether you’re looking to stabilize your sleep or stabilize your mind, the answers are already in your mechanics. We’re just here to help you find them.
Not quite ready to dive into the deep end? Download a Free Chapter: Get a preview of the science and the strategies before you buy. See if our grounded approach feels right for you.
Dr. David Deppeler is a physical therapist scientist-turned-breath whisperer helping people live how they’re built to live.
Deppeler has cracked the code for breathwork and handed us an owner’s manual. What he has been able to do with many of my professional runners is nothing short of profound. His work has helped my runners find more efficiency, durability, confidence and performance potential. This isn’t wellness fluff, it’s performance gold.
★★★★★
David McHenry, PT, DPT
Physical Therapist & Strength Coach, Union Athletics Club
Performance Coach for Nike’s Elite Runners
★★★★★
Tom Brumlik
Under Armour 800m Coach
★★★★★
Jessica Dorrington, PT, DPT
Pelvic Health Specialist & Performance Consultant to Elite Runners
David Deppeler brings clarity, nuance, and a refreshing dose of honesty to the world of breath training. His work integrates deep clinical insight with a practical, accessible style that makes the science usable—whether you’re an athlete, coach, or simply someone trying to breathe better. David has helped push the field forward. Breathwork Exposed is a powerful, timely resource that strips away the hype and brings the focus back to what truly works.
★★★★★
Patrick McKeown
Founder of Oxygen Advantage and bestselling author of The Oxygen Advantage
Through the lens of science and clinical insight, David has captured the living heart of breathwork long revealed by ancient traditions. Breathwork Exposed brings coherence to the vast, often overwhelming world of breath practices —honoring their roots while offering clear, grounded guidance for modern seekers. This is a rare and valuable contribution to the evolving field of breath.
★★★★★
Lee Lyon
Author of 112 Meditations from the Book of Divine Wisdom
David’s work brings breath back to life. As a physician, I’ve seen countless approaches to breathing, but what he offers through Breathe Your Truth is different—deeply human, refreshingly clear, and quietly transformative. The way he weaves breathwork and Qi Gong is not only elegant, it’s effective. I return to his teachings again and again because they work. Breathwork Exposed is a brilliant extension of his gift: grounded, insightful, and filled with tools that can truly shift how we feel and function.
★★★★★
Irene Hoepfel, MD
Austria
