The Only Number That Captures Your True Nervous System State
Most health metrics tell you what happened — your step count, your calories, your sleep hours. The Neural Calm Score tells you something far more valuable: the current biological state of your autonomic nervous system.
It is a composite biometric score — calculated from six sensor signals captured continuously by your Neural Calm Band — that reflects the balance between your sympathetic (stress) and parasympathetic (calm) nervous systems in real time.
At its core, the Neural Calm Score is a measure of your vagal tone — the resting activity level of the vagus nerve, which is the primary driver of the parasympathetic nervous system and the body's most important pathway to genuine calm.
Your Neural Calm Score — Live
Coach Marcus
"Your vagal tone is improving week on week. The Anandanol™ timing change is working — keep it going."
Why a Single Score Changes Everything
One Clear Number
No confusing raw data. Your Score translates six biometric signals into one actionable insight.
Tracks Your Progress
Watch your Score rise week by week as Anandanolâ„¢ restores your autonomic balance.
Early Warning System
A dropping Score alerts you and your coach 24–48h before stress symptoms appear.
Grounds Your Coaching
Every coaching session starts with your Score. Every recommendation is grounded in your data.
What Is Vagal Tone — and Why Does It Matter?
The vagus nerve is the longest cranial nerve in the body — a bidirectional communication superhighway connecting the brain to the heart, lungs, gut, liver, and immune system. It is the primary driver of the parasympathetic nervous system — the biological state of genuine calm, recovery, and resilience.
Vagal tone describes the resting activity level of the vagus nerve. High vagal tone = highly responsive parasympathetic system = resilient, adaptive, genuinely calm nervous system. Low vagal tone = chronically activated stress response = the biological root of anxiety, poor sleep, and emotional dysregulation.
Research from leading institutions confirms that vagal tone is one of the most important — and most improvable — markers of health. It correlates with cognitive performance, immune function, cardiovascular health, emotional regulation, and longevity.
Key insight from Nurosym research: Vagal tone is directly measured by Heart Rate Variability (HRV). A one-hour session improving vagal activation "favourably altered all three parameters of HRV" — demonstrating the direct, measurable link between vagus nerve activity and autonomic balance markers.
Low Vagal Tone
High Vagal Tone
Six Signals. One Score.
The Neural Calm Band captures six biometric signals simultaneously, 24 hours a day. The AI fuses them into your personalised Calm Score — updated continuously throughout the day.
Heart Rate Variability (RMSSD)
35% weightingThe gold-standard measure of vagal tone. RMSSD captures beat-to-beat variability — the direct signature of parasympathetic nervous system activity. Measured continuously via 6-LED optical PPG at ±2ms accuracy.
Sleep Quality & Architecture
25% weightingDeep sleep %, REM duration, sleep onset latency, and overnight HRV recovery. Sleep is when the vagus nerve restores itself — poor sleep is directly reflected in a dropping Calm Score the next day.
Electrodermal Activity (EDA) — Stress Signal
20% weightingSkin conductance driven by the sympathetic nervous system. Each EDA spike represents an acute stress event. The frequency and intensity of these events directly impacts your Score — fewer, shorter spikes = higher vagal tone.
Skin Temperature Variance
12% weightingOvernight temperature patterns reveal recovery quality and inflammation signals. A healthy circadian temperature curve indicates strong parasympathetic overnight restoration.
Respiratory Coherence
8% weightingBreathing pattern regularity and coherence. Slow, regular breathing directly activates vagal tone via the baroreflex — making respiratory coherence a direct, real-time indicator of parasympathetic activity.
Score Formula
Personalised weights adapt to your baseline over 14 days. Your Score is always measured against you — not an average.
What Your Score Tells You
Sympathetic System Dominant
Your nervous system is in sustained fight-or-flight. HRV is critically low, EDA stress events are frequent. Continued operation in this zone leads to burnout, immune suppression, and cardiovascular strain.
Your Coach's Priority
- Review supplement protocol urgently
- Identify acute stressors from EDA data
- Prioritise sleep recovery interventions
- Consider emergency check-in session
Below Baseline
More sympathetic than parasympathetic. You may feel manageable day-to-day, but recovery is impaired, sleep quality is suffering, and you're building a stress deficit. The most common state for people before starting Neural Calm.
Your Coach's Priority
- Identify consistent stress patterns
- Optimise Anandanolâ„¢ timing
- Review sleep hygiene interventions
- Build protective daily routines
Balanced Autonomic Tone
Healthy autonomic balance. HRV is in a good range, sleep is restorative, and stress events are present but manageable. This is the target zone for most people and the level at which performance, mood, and health are meaningfully optimised.
Your Coach's Priority
- Stabilise and protect this zone
- Identify what drove improvement
- Begin building toward 80+
- Fine-tune supplement protocol
High Vagal Tone — Optimal State
Your parasympathetic system is dominant. HRV is excellent, sleep is deeply restorative, stress events are rare and recover quickly. This is the biological state associated with peak cognitive performance, emotional regulation, social engagement, and long-term health.
Your Coach's Priority
- Document what's working
- Protect your routines
- Plan life challenges proactively
- Consider performance optimisation
Could Your Vagal Tone Be Holding You Back?
Answer 10 quick questions about the 10 key areas most affected by vagal tone and autonomic nervous system health. Get an immediate assessment of your autonomic profile.
Rate each from 1 (Never) to 5 (Always)
Explore the Science
Understand the neuroscience behind vagal tone, HRV, and the Endocannabinoid System that makes Anandanolâ„¢ and the Neural Calm Score so effective.
The Science →