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Ferriss Reports 30 Percent HRV Increase After Stellate Ganglion Block Treatment

Modern Wisdom · Rabbit Hole: Who Will Survive The AI Era? (cats, mostly) - #1105 · June 1, 2026
Ferriss Reports 30 Percent HRV Increase After Stellate Ganglion Block Treatment
Modern Wisdom
Modern Wisdom
Rabbit Hole: Who Will Survive The AI Era? (cats, mostly) - #1105
"It was a 30% increase in HRV. The 30% increase in HRV overnight. And that held for, I mean, I'm what, 3, 4 months now after it started to tickle back down."
Tim Ferriss described his experience with a stellate ganglion block (SGB), an ultrasound-guided anesthetic injection into nerve bundles in the neck used to reset the nervous system. The treatment, performed by BioReset's Matt Cook, resulted in a dramatic 30% increase in heart rate variability that persisted for months, along with reduced rumination and nervous system agitation. The procedure is used as a one-stop intervention for severe PTSD in soldiers.

About this episode

Host Chris Williamson convened with entrepreneur Nirav Tolia, investor George Mack, and author Tim Ferriss for a wide-ranging conversation covering emerging technologies, mental health treatments, and cultural observations. The most striking revelation came from Ferriss, who detailed his extensive experience with transcranial magnetic stimulation (TMS) for treating severe anxiety, describing how accelerated protocols reduced his symptoms from debilitating to minimal in days, though at costs exceeding $30,000 and with unexpected side effects including temporary sexual dysfunction. Ferriss disclosed he's now investing in TMS companies and supporting research at UT Austin, predicting the technology will displace many psychiatric medications within years. The group examined controversial statistics showing the UK arrested over 12,000 people for social media posts in 2023, nearly double second-place Belarus and far exceeding authoritarian states like Russia and China, sparking debate about Western civil liberties. Tolia discussed the emerging AI looksmaxing trend where users upload photos to ChatGPT or Gemini for personalized cosmetic surgery and aesthetic improvement recommendations. The conversation explored whether technology removes meaning from life, with Ferriss arguing that social media and digital devices create a form of digital poison many consume daily, while Mack countered with techno-optimistic views about AI solving problems we can't yet forecast. Other topics included language learning, visual memory training, the terminal velocity of cats, Winston Churchill's near-death experiences, dating app monopolies, brain stimulation for migraines, and speculation about Apple's secretive collaboration with Jony Ive on three mysterious products including one in a never-before-seen category. The episode balanced serious discussion of mental health innovation with humor and personal anecdotes, reflecting the hosts' chemistry and diverse expertise.

Key takeaways

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