'Food Noise' and the Science of Interoceptive Awareness

Interoceptive awareness is the ability to feel and understand internal body states such as hunger, exhaustion, cold, pain, and a racing heartbeat. Poor or altered interoceptive awareness is common in eating disorders, especially anorexia. Muted body signals can help some patients push through discomfort and perform well in school, sports, and work, including studying through exhaustion or playing through intense pain. The same muted signals create a lethal paradox because hunger cues become quiet or missing. As a result, eating becomes physically and emotionally exhausting, and patients may feel full despite severe malnutrition. GLP-1 medications can reduce “food noise,” but may also blunt brain-body signals and mute other vital cues. True health involves nourishing oneself even when internal signals are unavailable.

"Having poor or altered interoceptive awareness is incredibly common in eating disorders, particularly anorexia. It creates a fascinating and lethal paradox: It's the exact trait that often allows these patients to push through discomfort and excel in school, sports, and work, but it's also the very thing that causes them to fall deeper into their eating disorder."

"Many patients with anorexia are also excellent students and star athletes, and it turns out that having muted body signals actually helps them excel in those areas. Patients have told me about their ability to study right through exhaustion; while their classmates are falling asleep, they can keep cramming for finals. Other patients who are competitive athletes have shared how they can play through intense pain and discomfort, pushing their bodies far past what others can tolerate."

"But there's a dangerous catch: These same patients who can ignore fatigue or pain also can't hear their body's signals for hunger. Because their hunger cues are incredibly quiet or entirely missing, eating becomes physically and emotionally exhausting. Even when their bodies are severely malnourished and logically should be starving, they feel completely full."

"While GLP-1s eliminate "food noise," they may also blunt brain-body signals and mute other vital human cues. True health means nourishing oneself even when internal signals are unavailable."

Read at Psychology Today