The Science
We measure what the autonomic nervous system actually does — and we target the biomarkers that reveal whether it is changing.
The Autonomic Hypothesis
Chronic sympathetic dominance is one of the most under-addressed drivers of poor sleep, low HRV, inflammation, and accelerated aging. The parasympathetic branch — the “rest-and-digest” system — is where cellular repair, memory consolidation, and metabolic recovery primarily occur.
Protocol NSR-2026 tests whether a structured, multi-modal parasympathetic activation program can produce measurable shifts in biomarkers linked to stress, recovery, and longevity.
Research-Grade MonitoringKey Biomarkers
Targets are aspirational protocol goals based on observed directional changes. They are not guaranteed outcomes.
Root Mean Square of Successive Differences
Primary time-domain measure of parasympathetic tone.
Target: +20–40% improvement over baseline
Standard Deviation of NN Intervals
Reflects overall autonomic variability and resilience.
Target: Stabilize within healthy age-matched range
Low-Frequency / High-Frequency Ratio
Frequency-domain index sometimes used to assess autonomic balance; interpretation remains debated.
Target: Track directional change under consistent conditions
Cortisol Awakening Response
Indicates chronic stress load and HPA axis function.
Target: Normalize morning cortisol curve
Slow-Wave Sleep Duration
Restorative sleep stage tied to autonomic recovery.
Target: Increase by 15–30% relative to baseline
High-Sensitivity C-Reactive Protein
Systemic inflammation marker influenced by chronic stress.
Target: Move toward low-risk range
Measurement Tools
Clinical-Grade ECG
Used for baseline and endpoint HRV assessments with research-level precision.
Consumer Wearables
Oura Ring, Whoop, and Apple Watch provide continuous HRV, sleep, and recovery data.
Dried Blood Spot Panels
Finger-prick biomarker collection for inflammatory, metabolic, and hormonal markers.
Salivary Cortisol
At-home collection across the day to map the cortisol awakening response.
Subjective Scoring
Daily recovery, stress, and sleep quality ratings contextualize objective metrics.
Analysis & Personalization
AI Inference Layer
Aggregates multi-source data and recommends personalized protocol adjustments.
Want the full methodology?
Request the Protocol NSR-2026 research brief or a conversation with the science team.