For health professionals
Cardiac coherence, taught for real clinical 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 clinical 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 and interpret heart rate variability, master coherence induction, and integrate biofeedback into your practice with Heart Tracker and emWave. The core of the curriculum.
$245
More of Dr. O’Hare’s video courses are being translated to English and will join the catalogue soon.
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 clientsProtocols and coaching scripts for one-on-one and group work.
Biofeedback toolsHands-on guidance with Heart Tracker and emWave devices.
Teaching materialsSlides, memo sheets and handouts you can share.
Certificate of completionContinuing-education accreditation planned.
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.