Endocrine System

Introduction

The role of the Nervous System

The.

Where is the Nervous System

The .

Healthy function of the Nervous System

As an example,

Malfunction of the Nervous System

In a healthy body, str

Mechanisms for Returning to Homeostasis

So now that we understand at a basic level how

Supporting those Mechanisms

4. Supporting calm HPA axis + increased vagal tone

To shift out of "alert mode", the body needs signals of safety, consistency, and recovery. Regular, sufficient sleep in a stable daily rhythm recalibrates cortisol signalling and restores the natural rise-and-fall pattern the system expects. Darkness, cool temperatures, and consistent timing all reinforce this reset.

Breath is one of the fastest levers for changing physiology. Slow, nasal breathing with longer exhales activates the vagus nerve — the body’s main “stand down” signal — reducing inflammatory tone through the cholinergic anti-inflammatory pathway. Gentle, consistent movement supports this shift too, improving circulation and resilience without triggering the stress chemistry that chronic over-training can induce.

Finally, nervous systems calm in relationship. Real social connection, shared laughter, physical presence, and emotional safety send biological cues that lower threat perception and reduce inflammatory signalling. Reducing overwhelming psychological load, sensory stress, and chronic over-commitment is not a luxury but a physiological requirement. When the brain receives enough signals of safety, the immune system follows suit, downshifting from defence toward repair.