The guest
Paul Stamets: World-renowned mycologist, author of eight books on mushrooms, and founder of Host Defense / Fungi Perfecti. He researches psilocybin's effects on the brain and mushroom mycelium's potential to boost immunity in bees, livestock, and humans.
What this episode covers
Stamets and Rogan trace the global psilocybin revolution, from the RAND report estimate of 8 million American users to its use for veterans, law enforcement, and terminal cancer patients. Stamets explains the science of psilocybin stimulating neuron growth, the Stoned Ape theory of the McKenna brothers, and historical mushroom use hidden in Egyptian, Christian, and Mesoamerican art. A long stretch covers his own research showing mushroom mycelium (especially Agarikon and turkey tail) can protect bees from colony-collapse viruses and chickens from bird flu, and his frustration with regulatory roadblocks. They close on vaccine policy, the need for full data disclosure, and natural products as adjuncts to conventional medicine.
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Big reveals from this episode
- Stamets argues psilocybin should be made free and government-funded as a citizen's right, saying it would slash crime and national debt.
- Claims psilocybin mushrooms appear on Egyptian pyramid carvings and that ancient saint/Christ halos are depictions of the underside of a mushroom.
- A Sphere AI robot told him random acts of kindness are 'inefficient' compared to transactional return on investment.
- Cites his Utah State University study dating the arrival of psilocybin in the fungal genome to ~65 million years ago, just after the dinosaur-killing asteroid.
- Spends over a million dollars a year on private mushroom research and holds the world's largest Agarikon strain library (~115 strains).
- Says a quarter-gram of Agarikon mycelium per chicken made a farm 'an oasis of immunity' against bird flu, but growers euthanized flocks for insurance money anyway.
- A Vancouver RCMP officer sends arrestees to a psilocybin shop and de-escalates arrests with kindness; a Boston officer won a religious exemption to use psychedelics.
Worth remembering
- The lethal dose (LD50) of psilocybin mushrooms is about 42 pounds, and even that mostly kills via indigestion.
- The human brain grew roughly 50% over 200,000 years, a jump Stamets ties to the Stoned Ape theory.
- There are 235 clinical studies on psilocybin listed at clinicaltrials.gov, up from essentially none 25 years ago.
- Stamets published in Nature Scientific Reports that polypore mushroom extract reduced deformed-wing virus in bees by ~879 times in 12 days.
- Of an estimated 150,000 mushroom species, only ~15,000 are identified, and just 1-2% are poisonous, psychoactive, or good edibles each.
- Mycelium of lion's mane activates ten times more genes than the lion's mane fruiting body itself.
- Morel mushrooms are poisonous raw and release volatile compounds when cooked; never fry them in an unventilated kitchen.
- The largest living organism on Earth is an Armillaria fungus in the Pacific Northwest spanning ~2,200 acres, one cell wall thick.
- A West Virginia University grad student discovered a new fungus (Paraglandula clandestina) living symbiotically in morning glory seeds that produces LSD.
- Stamets wrote his eighth book over two and a half years and more than 500 hours, using no AI.
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