This Huberman Lab podcast episode focuses on obsessive-compulsive disorder (OCD), differentiating it from obsessive-compulsive personality disorder. The episode details the neural circuitry underlying OCD (corticostriatothalamic loop), explaining why certain treatments, like exposure-based cognitive behavioral therapy (CBT), are effective by increasing anxiety tolerance. The speaker discusses various treatments including SSRIs, ketamine, and the limited effectiveness of cannabis, emphasizing the importance of a tailored approach and the often-necessary combination of therapies. A key takeaway is that thoughts are not actions, and learning to distinguish between them is crucial for managing OCD. The episode concludes by highlighting the importance of seeking professional help for OCD and exploring various treatment options.