The Escaped Sapiens Podcast

How Anesthetics Affect The Brain | Anthony Kaveh | Escaped Sapiens #88

Mar 23, 2026
Anthony Kaveh, a Stanford and Harvard trained, board-certified anesthesiologist who educates on anesthetics and therapeutic psychedelics. He explains how anesthetics sequentially silence brain networks, contrasts ketamine and nitrous oxide with other agents, and explores anesthesia’s links to cognition, postoperative risk, and mindset-based techniques like hypnosis and therapeutic suggestions.
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INSIGHT

Surgery Trauma May Drive Cognitive Decline More Than Anesthesia

  • Similar rates of postoperative cognitive impairment occur with regional anesthesia as with general anesthesia, suggesting surgery/inflammation—not anesthesia alone—may drive some decline.
  • This weakens the assumption that general anesthetics are the primary cause of long-term cognitive harm.
ADVICE

Treat Coma As Prolonged, Dose-Dependent Sedation

  • Induced comas and surgical anesthesia use similar drugs at different doses; context sensitive half-lives matter for prolonged sedation.
  • Maintain continuous infusion and monitoring because drug accumulation and patient needs change over time.
ANECDOTE

Physician Patient Conversing While Sedated

  • Anthony recalls a physician patient remaining coherent under sedation and asking clinical vitals questions at doses that would sedate most people.
  • That behavior suggested unusually high cognitive reserve and tolerance during anesthesia.
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