Nervous System & Anxiety
Your autonomic nervous system regulates your stress response. Dysregulation means your body stays in fight-or-flight even when there's no danger.
What It Means
Your autonomic nervous system has two main branches: the sympathetic (accelerator—activates fight-or-flight) and the parasympathetic (brake—promotes rest and recovery). Healthy nervous system regulation means smoothly shifting between activation and rest as situations demand.
Nervous system dysregulation occurs when your system gets stuck in one mode. For anxiety, this usually means chronic sympathetic activation—your body constantly running the fight-or-flight program even in safe situations. You feel on edge, can't relax, and your body is flooded with stress hormones.
The vagus nerve is the main pathway of the parasympathetic system and has become central to modern understanding of stress. Polyvagal theory, developed by Stephen Porges, suggests that our nervous system assesses safety through 'neuroception'—an unconscious process that determines whether we feel safe enough to connect, need to fight/flee, or need to shut down.
How This Relates to ILTY
ILTY helps you understand your nervous system responses so they feel less frightening. When your body is activated, knowing it's your nervous system (not a heart attack, not going crazy) reduces the secondary panic that often makes anxiety worse.
Example
You notice you've been clenching your jaw all day, your shoulders are up by your ears, and you startle at every sound. This is nervous system activation without an obvious threat. Your body is stuck in 'danger mode.' Recognizing this pattern is the first step to co-regulating it back down.
Related Terms
Your body's automatic stress response that prepares you to face danger or escape it—often misfiring in modern life.
The zone where you can experience emotions without becoming overwhelmed (hyperarousal) or shutting down (hypoarousal).
A body-oriented therapy that addresses trauma and stress stored in the nervous system through physical sensation awareness.
Sensory-based exercises that bring you back to the present moment during anxiety, dissociation, or emotional overwhelm.
Related Resources
Put Knowledge Into Practice
Understanding concepts is valuable. Applying them to your own life is where the change happens. ILTY helps you do both.