Modern understanding of appetite increasingly centers on the nervous system — specifically, the chronic dysregulation that underlies many appetite presentations.
The Nervous System in Appetite
The autonomic nervous system has two primary states relevant to appetite:
Sympathetic activation ('fight or flight'): When chronically activated, drives anxiety-type appetite
Parasympathetic ('rest and digest'): The recovery state — undermined by appetite
Dorsal vagal shutdown: A third state — freeze/collapse — associated with depression-type appetite
Signs of Nervous System Dysregulation in Appetite
Chronic hyperarousal (always 'on edge'), difficulty relaxing even in safe environments, and feeling perpetually exhausted despite rest.
Regulating the Nervous System for Appetite
- Breathwork: Directly activates the parasympathetic nervous system
- Cold exposure: Controlled cold activates the vagus nerve, improving appetite
- Safe social engagement: Co-regulation through trusted relationships
- Movement: Discharges sympathetic activation accumulated in appetite