For health & wellness professionals
Cardiac coherence, for professional practice.
Learn to read heart rate variability, guide coherent breathing, and bring the 365 method to your clients — with courses created by Dr. David O’Hare, MD.
★ 4.8 on Udemy · Created by a physician & author · 15 years of practice
Physician-created
Built by Dr. David O’Hare, MD — author on cardiac coherence.
Evidence-based
Grounded in the autonomic nervous system and HRV science.
Practice-ready
Techniques and materials you can use with clients from day one.
The courses
Start where you are — from first breath to professional mastery.
Two English-language trainings are ready today, with more of Dr. O’Hare’s programs in translation.
IntroductionFor everyone
365 Breathing Zone
A gentle, practical entry to cardiac coherence: how the nervous system works, what heart rate variability tells you, and the daily 365 breathing practice. A perfect first step — and a warm on-ramp for professionals.
$65
ProfessionalFor practitioners
Most in-depth
The Basics of HRV
The full professional training: measure, analyse and interpret heart rate variability, with hands-on use of the Body Health Analyzer (BHA). The core of the curriculum.
$245
Coming soon
More of Dr. O’Hare’s programs, now being adapted into English.
Coming soonNo equipment needed
Essential Coherence
A complete online course to understand cardiac coherence and make it a lasting personal practice — using only your breath and attention.
What you’ll learn
- The science behind it: breathing physiology, the autonomic nervous system, the heart–brain connection and heart rate variability (HRV)
- What cardiac coherence is: its history, core principles and research-backed effects on body, emotions, attention and relationships
- A personal practice that lasts: rhythmic breathing exercises, guidance and simple daily rituals
- Practical ideas for sharing it with family, at school or in your community
Course details: 100% online · Self-paced · Certificate of completion
Who it’s for: everyone — professionals and non-professionals alike. No prerequisites.
Coming soonWith an introduction to biofeedback
Complete Coherence
Everything in Essential Coherence, plus a guided introduction to cardiac coherence software, to see the effects of your breathing on screen.
What you’ll learn
- Everything covered in Essential Coherence
- How biofeedback tools work, with examples of use
- How to read heart rate variability curves and coherence displays
Course details: 100% online · Self-paced · Certificate of completion · Software not included
Who it’s for: everyone curious to go further and visualise the effects of their practice. No prerequisites.
The method
Why coherent breathing changes what your clients feel.
Three ideas do most of the work — and each becomes a tool you can teach.
01
The autonomic nervous system
The balance between sympathetic “fight-or-flight” and parasympathetic “rest-and-digest” sets the baseline for stress, sleep and recovery.
02
Heart rate variability
The subtle beat-to-beat variation in the heart is a window on that balance — and a measurable marker of regulation you can track over time.
03
The 3·6·5 method
Three sessions a day, six breaths a minute, five minutes each. A simple, repeatable practice that shifts the body into a coherent state.
For professionals
Bring it into your practice.
Use it with clientsPractical exercises and breathing protocols to use one-on-one and in groups.
HRV assessmentHands-on use of the Body Health Analyzer (BHA): tests, pre/post measures and breathwork training.
Breathing Library30 free guided breathing videos to share with your clients.
Certificate of completionA certificate of completion for every course.
3·6·5
Sessions · breaths per minute · minutes
One small daily rhythm, taught well, is the whole practice. Your clients learn it in a week — and keep it for life.
The author
Dr. David O’Hare
Physician · Author · Cardiac-coherence educator
A physician and author, Dr. O’Hare helped bring cardiac coherence to a wide audience with the 365 method. For years his French-language trainings have guided both the public and health professionals; these English courses adapt that work for practitioners worldwide.
Trusted foundations
Learners already rate the work highly.
★★★★★
4.8
Average rating for 365 Breathing Zone on Udemy · 53 ratings, 166 learners
What learners say
“Wonderful explanation by Dr. David O’Hare… Thank you for making this very useful scientific information practical: how to improve HRV, and reach and repeat the cardiac coherence experience through 365 breathing.”
Umberto S., Udemy student
“One of the best Udemy courses.”
Julian W., Udemy student
Reviews of 365 Breathing Zone on Udemy.
Free guide
Start with Dr. O’Hare’s free guide, Reflections.
A clear introduction to cardiac coherence — plus occasional notes on HRV and new English trainings. No noise.
We’ll email the guide, then only the occasional useful note. Unsubscribe anytime.