Topic

Autonomic Nervous System

The ANS regulates involuntary functions: sympathetic branch (activation) and parasympathetic (recovery). HRV and GSR biofeedback reflect this balance.

View evidence by condition
Biofeedback session with physiological signal monitoring; clinical practice context.

Autonomic balance

Heart rate variability (HRV) is a marker of sympathetic-parasympathetic balance. Biofeedback training that increases HRV is associated with improvements in cardiovascular conditions, anxiety and sleep. For consolidated evidence levels by condition, see Studies & Certification and the evidence matrix.

Studies & Certification ← Back to Research
Deep dive: sympathetic, parasympathetic and metrics

The autonomic nervous system balances mobilisation (sympathetic) and recovery (parasympathetic). In health education, heart rate variability (HRV) often appears as a discussed proxy of autonomic flexibility, not a substitute for tests or diagnosis.

Connect this with Stress physiology, Vagus nerve regulation and HRV training. Evidence by condition in Studies & Certification.

For non-clinical readers, treat these ideas as an educational map: biofeedback training works on patterns over time; decisions about your case belong to the health professional who follows you.

Evidence matrix

See Studies for the table and evaluation bubbles.

View Studies ← Back to Research