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Physiological Brake System

Meaning

The Physiological Brake System is a conceptual term used to describe the collective mechanisms within the body responsible for rapidly slowing down or terminating a state of high arousal, effort, or stress. This system is synonymous with the parasympathetic nervous system, specifically its vagal component, which acts as the crucial counter-balance to the sympathetic “accelerator.” In hormonal health, a robust brake system is essential for preventing the transition from acute, adaptive stress to chronic, damaging stress. The efficiency of this system determines the body’s recovery capacity and overall resilience.