Study Context
Measuring objective stress has long been a challenge. This review consolidates clinical evidence making Heart Rate Variability (HRV) the gold standard for measuring autonomic nervous system tone.
Lead Author and Institution
Julian F. Thayer
Ohio State University
Main Results
- Low HRV correlates robustly with high perceived stress, poor emotional regulation, and increased cardiovascular risk.
- HRV drop can predict burnout onset 3 to 6 months in advance.
Application in Deuswell
Deuswell syncs with Apple Health/Google Fit to track overnight HRV, mapping parasympathetic recovery to personalize the daily Vitality Score.
