The #1 Evidence-Based Stress Reduction System

Train your nervous system to thrive under stress.

If you feel stressed, depleted, foggy, or wired but exhausted — your body has been running on empty for too long. HeartMath's Inner Balance is the only biofeedback system that doesn't just track your stress — it teaches your body a new way to respond. Build lasting resilience in minutes a day.

Get Inner Balance
See How It Works
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35+ years of research

Trusted by practitioners, researchers, and organizations worldwide

NASA Stanford Medicine Kaiser Permanente
Is this familiar?

These symptoms feel separate.

They're not.

When stress sticks around long enough, your body stops waiting for it to pass — and starts living like it's permanent. That shows up everywhere: in your sleep, your mood, your focus, and your energy.
In your mind
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Constant worry

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Brain fog

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Hopelessness

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Overwhelmed

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Mood swings

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Emotional reactivity

In your body
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Sleep problems

 

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Always tired

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Aches & pains

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Head pressure

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Digestive issues

Pulse

Racing heart

Ready to feel different under stress?

It’s time to retrain your nervous system.

 Inner Balance Sensor + App · $249 · 60-day money-back guarantee

Get Inner Balance

 

How It Works

Build resilience in minutes a day.

 The Inner Balance sensor + app gives you a real-time view of your heart rate variability and a daily practice that reshapes how your body responds to stress. 
See

Step 1

See

Clarity in real time

The sensor clips to your ear and measures your heart rate variability — also known as HRV — in real time, giving you an honest picture of your nervous system — right now, in the moment. No guesswork.

Train

Step 2

Train

5 min/day or more

Guided by real-time HRV biofeedback and heart-focused techniques, you practice shifting your body from stress into coherence — a calm, focused state. You don’t just follow the technique. You watch it work.

Rewire

Step 3

Rewire

Lasting resilience

With regular practice, your heart and brain coordinate more deeply — building long-term resilience, emotional regulation, and calm under pressure. You sleep better, respond instead of react, and feel confident in the face of daily stress.

See it in action

 Watch how a daily session works — start to finish.

Most devices measure stress.

HeartMath trains your body to change it

Most wearables track stress and HRV. HeartMath uses HRV in real-time to guide you through exercises that actively train your stress response.

 What most wearables do

  • Track & analyze HRV
  • Show your data
  • Tell you to rest

What HeartMath does

  • Real-time HRV: your window into your nervous system
  • Immediate feedback for regulation and training
  • Builds capacity to manage daily stressors

 Other devices track HRV. HeartMath trains you to improve it.

Research backed · Used in hospitals, research labs, and high-performance organizations worldwide

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The results

Real change, measured in real people.

Real outcomes from 14,000+ HeartMath users — measurable improvements in as little as 6–9 weeks.

-17%

reduced overall stress

+8%

increased emotional contentment

-15%

reduced anger & resentment

-17%

reduced fatigue
 Backed by 35+ years of research and 80+ peer-reviewed studies. 

 

Explore the Research →
What you get

Everything you need to train your nervous system.

Sensor, app, and guided daily practice — everything you need to train and track your progress.

The Sensor

Inner Balance™ Coherence Plus

  • Research-backed insight into nervous system regulation
  • Real-time HRV & coherence biofeedback
  • Lightweight ear clip that measures your pulse
  • Bluetooth • USB-C • iOS & Android

The App

HeartMath App

  • Real-time HRV biofeedback training
  • Programs for stress, sleep, focus, and emotional balance
  • Track your progress over time
  • Lifetime subscription included

$249

Sensor + App · Free shipping · HSA/FSA eligible · 60-day money-back guarantee · iOS & Android

Get Inner Balance
Proven in the field

Trusted by the world's leading experts in stress and performance.

From VA hospitals to Stanford research labs to elite performance teams, HeartMath is used in the most demanding environments in the world.


24,000+ health professionals recommend HeartMath to their patients
The rich neurologic and endocrine structure of the heart makes it possible to train the heart from acting in a frenzied and disordered manner during stress and anger to working in an optimal manner. One of the easiest tools I’ve found to improve your health.
Joel K. Kahn, MD
Cardiologist & Clinical Professor of Medicine
HeartMath has demonstrated how getting the heart and brain working together can optimize mental and emotional and physical health, our sense of meaning, our relationships — our life.
Daniel Amen, MD
Psychiatrist & Medical Director, Amen Clinics
Measuring is a far lower value than training — and actively changing, and becoming aware.
Dave Asprey
Founder of Bulletproof & Father of Biohacking
For biohackers, performance junkies or anyone interested in a better life, the ideas of HeartMath are critical.
Steven Kotler
Peak Performance Expert & NY Times Bestselling Author
HeartMath has inspired thousands of people around the world to gain better control of their lives. Their work is paramount in helping people change their health, increase their mental edge, realize their spiritual connection by opening their heart and unfold into a more enriched destiny. The brain may think, but the heart knows.
Dr. Joe Dispenza
Neuroscientist, Researcher & NY Times Bestselling Author

HeartMath is for you if...
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You're exhausted in a way sleep doesn't fix.


You don't need another coping tool — you need something that changes what's happening in your body.

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You've tried therapy, meditation, maybe medication. 


Something still feels off — and maybe you've been told it's your nervous system. HeartMath gives you a way to train your way into a new pattern. 

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You track your HRV. You know stress is capping your performance.


You want a tool that trains you to change it — not just measure it. 

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Stress is affecting your relationships — and you know it. 


You're shorter with people you love. Less present. HeartMath helps you regulate so you can actually show up the way you want to.

You're not looking to cope. You're looking to change.

People come to HeartMath for the stress relief. Many find their way to something they weren't expecting — closer relationships, sharper intuition, a stronger sense of what matters.

Working With Clients or a Team

 HeartMath also makes tools built for practitioners.

 emWave Pro and emWave Pro Plus bring HRV biofeedback into your sessions, workshops, and outcome reporting. 
emWave Pro

emWave Pro

Desktop HRV biofeedback for internal trainers and facilitators — run group coherence sessions, store data, and demonstrate the technology live in workshops.

  • Multi-client
  • Desktop
  • In-office
Buy emWave Pro
emWave Pro Plus

emWave Pro Plus

Everything in emWave Pro, plus standardized HRV assessments and printable reports —useful for measuring program outcomes and demonstrating ROI to leadership.

  • HRV assessment
  • Reports & ROI
  • Desktop
Buy emWave Pro Plus
Take the next step

 It starts with stress relief. It ends with feeling like yourself again.

 You can't eliminate stress. But you can change how your body responds to it.

60-day money-back guarantee · 12,000+ Certified Practitioners worldwide · 
80+ peer-reviewed studies

$249

 Sensor + HeartMath App
Free shipping · HSA/FSA eligible · iOS & Android

Get Inner Balance