Evidence-Based Nervous System Education
Clear, practical education on stress, HRV, sleep, and recovery — for therapists, athletes, and anyone who wants to understand their own physiology.
An HRV waveform
Variability between heartbeats — more variation often means better regulation.
68
HRV (ms)
Regulated
State
12/min
Breath
A 4-4-6 breathing protocol
Try it now. Inhale 4, hold 4, exhale 6.
ready
Lab modules
HRV & heart rate variability
What HRV measures, how to read it, and what it tells you about recovery and resilience.
Breathing exercises
Evidence-based protocols for regulation, focus, and sleep onset.
Sleep & recovery
The physiology of sleep, recovery debt, and how to measure it.
Polyvagal theory
A practical, non-dogmatic introduction to the autonomic nervous system.
Stress & performance
How stress helps and harms, and the line between eustress and burnout.
Cold, heat & nature exposure
What the evidence says about deliberate exposure practices.
Physiological coherence is one module of a larger framework. Useful here, connected to more at the Coherence Hub.
See how NervousSystemLab connects to the Coherence Hub