HRV Biofeedback in a Global Study of Common Coherence Frequencies and Emotional States
Sai Balaji et al. — Scientific Reports / HeartMath-linked dataset
Key Insight
1.8M app-derived sessions characterize common HRV-coherence frequencies and emotion-associated patterns — observational, not a validated individual-wellbeing metric.
What's Actually Supported
A large app-derived dataset (1.8M sessions) characterizes common HRV-coherence frequencies and their association with reported emotional states.
Caveat / Limitations
Observational, app-derived data — coherence metrics and emotional labels require care before generalizing to any one individual's wellbeing.