Huberman LabBiology & Treatments for Compulsive Eating & Behaviors | Dr. Casey Halpern
At a glance
WHAT IT’S REALLY ABOUT
Rewiring Cravings: Deep Brain Stimulation for Compulsive Eating Behaviors
- Andrew Huberman interviews neurosurgeon and researcher Dr. Casey Halpern about using deep brain stimulation (DBS) and other brain–circuit based tools to treat compulsive eating, OCD, addiction, and movement disorders.
- Halpern explains how specific brain circuits, particularly the nucleus accumbens and connected frontal areas, drive loss-of-control behaviors such as binge eating, drug seeking, and compulsive checking.
- His lab translates rodent findings into first-in-human trials where implanted devices detect craving-related brain signals in real time and deliver brief, targeted electrical stimulation to interrupt binges.
- They also discuss emerging noninvasive approaches like focused ultrasound and TMS, the limits of current pharmacologic and behavioral treatments, and how understanding brain circuitry could inform future therapies for anorexia, depression, and other psychiatric conditions.
IDEAS WORTH REMEMBERING
5 ideasCompulsive Disorders Share a Core 'Loss-of-Control' Circuit
Halpern emphasizes that OCD, binge eating disorder, certain forms of obesity, and addictions share a common feature: pursuing an urge despite clear risk or negative consequences. Circuits linking frontal control regions (orbitofrontal cortex, prefrontal cortex) with the basal ganglia and ventral striatum (including the nucleus accumbens) appear dysregulated in these conditions. Recognizing them as related 'loss-of-control' disorders may allow one set of circuit-based treatments to generalize across multiple diagnoses.
Nucleus Accumbens is a Hub for Craving, Not Just 'Reward'
The nucleus accumbens integrates inputs from cortical control areas and is crucial for gating reward-seeking and compulsive behavior. High-fat diets, drugs of abuse, and other powerful rewards can 'hijack' its function, making animals and humans persist in seeking rewards despite punishment or risk. Halpern’s lab identifies specific accumbens activity patterns that predict imminent loss-of-control eating and uses that signal as a trigger for intervention.
Responsive, Episodic DBS May Work Better Than Continuous Stimulation
Traditional DBS often delivers constant stimulation, which can lead to tolerance and loss of benefit, as seen in some depression and OCD cases. In mice, Halpern's team found that brief bursts of stimulation delivered only when a pathological accumbens signal appears can block binge episodes and preserve long-term efficacy. His human trial uses implanted devices to detect craving-related signals and automatically trigger 5–10 seconds of stimulation to interrupt the craving → binge cascade.
Binge Eating is Episodic; 'Loss-of-Control Eating' is the More Frequent Target
Clinically defined binge episodes (very large amount of food in a short time with loss of control) typically occur once daily in severe binge eating disorder, a constraint of stomach capacity and diagnostic criteria. However, 'loss-of-control eating' without full binge criteria can occur many times per week—and is likely the more pervasive and relevant behavioral target. Halpern’s work focuses on detecting and disrupting these loss-of-control moments, rather than just counting formal binges.
Obesity is a Phenotype; Only a Subset is Driven by Compulsion
Halpern stresses that not all obesity is due to compulsive overeating. Roughly 20% of people with obesity show clear binge or loss-of-control eating, yet because obesity is so prevalent, this subset still represents a massive clinical problem. His obesity–DBS trial specifically enrolls patients who both have severe loss-of-control eating and have failed gastric bypass, targeting those whose weight problems are tightly linked to disordered reward circuitry rather than purely metabolic or environmental factors.
WORDS WORTH SAVING
5 quotesThe issue is if you have an urge for a reward that either puts you or somebody else at risk, it's probably a reward we shouldn't have.
— Dr. Casey Halpern
You have to get into the brain before you get out of it.
— Dr. Casey Halpern
We see laughter in the clinic sometimes… that's because we're stimulating parts of the brain that are not just involved in motor circuits, but also in what we call limbic circuits, or parts of the brain involved in emotion.
— Dr. Casey Halpern
In a mouse, if you deliver stimulation intermittently, and only when a craving signal is detected, that effect will be the most robust and durable. But if you deliver it continuously, actually the benefit goes away over time.
— Dr. Casey Halpern
Obesity is a phenotype… not everybody is obese because of the same thing.
— Dr. Casey Halpern
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