Nervous System Assessment

HRV is presented as a practical real-time proxy for nervous system regulation and vagal tone. Dutch testing can provide evidence of chronic stress burden through cortisol patterns. High anxiety, low energy, and poor sleep are described as a strong signal that nervous system dysregulation is primary. Dysbiosis and intestinal permeability markers alongside adrenal dysfunction suggest a nervous system driver rather than a purely pathogenic cause. Practitioners should assess history, lab markers, and symptom tracking together when evaluating nervous-system-driven gut symptoms.