Research and evidence

HeartSeed Training programs are informed by decades of research into heart‑brain communication, Heart Rate Variability (HRV) and nervous system regulation.

Research demonstrates that coherent heart rhythms support:

• Emotional regulation and stress reduction

• Cognitive clarity and focus • Nervous system resilience

• Improved communication and social connection

• Learning readiness and performance

Heart coherence is measured through HRV — a widely recognised marker of autonomic nervous system health.

Key Research areas

Children and Teachers

Imagine transforming classroom stress into calm focus with just 5 minutes a day. A 2023 study with grade 5 students showed exactly that: daily Heart Lock-In practice—simple heart-focused breathing paired with positive feelings like care—significantly boosted their resting heart rate variability (HRV), a key marker of nervous system resilience.​

Compared to a 4-week relaxation control, these 10-11-year-olds not only showed measurable physiological improvements (medium effect size), but also reported feeling more emotionally stable, positive about themselves, and connected to others. They used the techniques during math tests, arguments with friends, and even sports—handling emotions better, staying focused longer, and noticing fewer conflicts.

Teachers led it effortlessly post-lunch using basic HeartMath biofeedback apps (green waves = coherence!). Kids loved it—75% enjoyed the practice, 64% found it helpful for feelings, and most wanted to continue at home and school. This quick, evidence-based approach proves you don't need hours or complex SEL programs—just practical tools that fit any curriculum and deliver real, lasting calm for students and teachers.

Bearden, A. G., van Oostrom, S., & Brown, S. B. R. E. (2023). The effects of HeartMath Heart Lock-In on elementary students' HRV and self-reported emotion regulation skills. Psychology in the Schools. https://doi.org/10.1002/pits.23025

Memory and Coherence