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HRV BASICS
Three questions most people ask when they start tracking HRV.
01 · MEASURE
What is Heart Rate Variability?
Heart rate variability (HRV) is the change in time between one heartbeat and the next. At 60 beats per minute, the gaps might be 950 ms, then 1,050 ms.
Researchers use HRV to see how well your nervous system adapts to stress and recovers from it.
02 · TRAIN
What is Biofeedback?
Biofeedback shows you a body signal as it happens, so you can learn to change it. In the Optimal HRV app, you breathe with a pacer at your resonance frequency while your heart rhythm shows live on screen.
Developed with Dr. Inna Khazan, Harvard Medical School faculty.
03 · COMPARE
What is an optimal / ideal HRV?
There's no single best number. A good HRV is one that's normal for your age and holds steady or rises over time.
In healthy adults, resting RMSSD averages about 42 ms, with most people between 19 and 75 ms.
HRV Biofeedback App
The Optimal HRV app is built for HRV measurement, biofeedback training, mindfulness sessions, and resonant frequency assessment on iOS and Android
HRV Readings
Capture beat-to-beat HRV readings with a compatible monitor, including the Optimal HRV Monitor.
Biofeedback Training
Train with live feedback sessions designed to support HRV biofeedback practice.
Mindfulness
Guided mindfulness audio sessions to support calm and recovery routines.
Resonant Frequency Assessment
Helps identify a personal breathing pace for training.
Download the App now and start your 30-day free trial.
Success Stories
See how individuals and professionals are using Optimal HRV to improve health and outcomes
"The latest Optimal HRV band enhances reading accuracy and significantly reduces artifacts, ensuring you get the most precise data possible. I found the Optimal HRV forearm band and app much faster and easier for simple morning HRV checks."
Tim Ferriss
American entrepreneur & investor
"I think it’s fantastic that Optimal HRV came out – we have a very easy way to conduct heart rate variability biofeedback with clients… It’s beautiful in that it opens the doors for clinicians to work with people who may not be in their area."
Dr. Christine Sanchez
Sport & Performance Psychologist
"Thrilled with Optimal HRV! Easy-to-use reader & app deliver consistent, accurate HRV data. Clients love the clear emotional health info. Top-notch protocols for monitoring & training HRV. Highly recommend it for clinicians, researchers & clients seeking an excellent HRV tool!"
Scotty Butcher
Registered Physiotherapist