The Science of Heart-Brain Coherence

Science-backed tools to reduce stress, build resilience, and optimize performance.

For over 33 years, HeartMath Institute has pioneered the science of stress relief through research in heart rate variability (HRV) and heart-brain coherence—revealing how the heart influences emotion regulation, decision-making, and well-being.

How do you achieve heart coherence—and what does it feel like?

HeartMath Institute has spent over three decades researching how optimizing the heart-brain connection reduces stress, enhances emotional well-being, and improves our ability to think with more clarity and make better choices. Central to our work is heart-brain coherence (also known as HRV coherence or heart coherence)—a measurable state where your emotional, mental, and physical systems synchronize. This harmony shows up in your heart rate variability (HRV) patterns. When you achieve HRV coherence, your body creates optimal conditions for health and performance.