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