Andrew Huberman

The conversation opens with the size of a newly written book. It is described as a manual as much as a narrative. Readers can go through it in order, or skip straight to a goal such as managing stress, check which practices they already follow, and move on.

it's designed to be read front-to-back, learn a lot of science, a lot of health protocols

The book took several full rewrites. Rick Rubin is credited with pushing for one of them: according to the account, he asked whether the author liked the draft, got a hesitant answer, and told them to scrap it (the transcript renders this as "scrape it") because the author had to love the work. The process repeated over summer visits to Rubin in Europe. The final edits were done this year during a trip to Europe for a friend's wedding, working from about 9 p.m. until 2:30 a.m. every night. The speaker calls the trip a "vacation" in quotation marks and says they owe their girlfriend a real one.

Both participants describe Rubin as someone who spends nearly all his time engaging with other people's creative work. One calls him less a tastemaker than an analyst of art from an almost spiritual angle, someone who looks for whether a work is "real." As an example, the speakers recall that a Red Hot Chili Peppers album was recorded in a mansion because Rubin wanted the sound of the house instead of a studio. They also mention a forthcoming black-and-white documentary, believed to be on HBO Max, in which Rubin and Jay-Z listen to and talk about Jay-Z's music. The speaker thinks it was filmed in an abandoned post office in France because Rubin liked the skylight.

The discussion then turns to Rubin's list of things that are true: the laws of nature (physics, biology, chemistry), God, and professional wrestling. He reportedly watches about 10 hours of wrestling a week. His reasoning is that wrestling is the one thing everyone openly agrees is invented, while media, show business and the rules of sport are also invented but not acknowledged as such. One speaker says this is where they part ways with him. That speaker describes attending an AEW event with Rubin, where wrestlers stopped mid-match to acknowledge him and he seemed calmly present instead of caught up in the action.

everyone agrees it's made up

The exchange about Rubin's state of mind is banter. One speaker jokes that he must be on acid. The other notes that Rubin claims never to have used drugs and may have had one sip of alcohol long ago. A speaker then wonders whether some brains leak psychedelic chemicals, and extends that guess to schizophrenia, noting that the brain does produce endogenous psychoactive compounds such as DMT.

The reply corrects the leaking-chemicals idea with history. The dopamine theory of schizophrenia was based on the observation that drugs which reduce dopamine, the neuroleptics (haloperidol and clozapine are named), reduce auditory hallucinations. The speaker presents this as an example of how medicine reasons, "for better or worse," from what a drug does back to what causes the disease.

for the longest time we thought that dopamine, too much dopamine was schizophrenia

The speaker describes the symptom burden: voices that feel like another person, often saying horrible things about the person or the world, day and night. After first saying it the other way around, the speaker corrects to: some patients have visual hallucinations, but most have auditory ones. Onset is usually in the early to mid 20s. Because these drugs lower dopamine throughout the brain and body, they can suppress the motor system. The transcript calls this "tardy of dyskinesia," and the speaker adds that some people seen on the street with abnormal movements are not showing psychosis but the effects of their antipsychotic medication.

On funding, the speaker recounts a meal with Bob Desimone, described as the then director of the National Institutes of Mental Health. Desimone explained the funding gap between schizophrenia and autism research by advocacy: parents of autistic children lobby hard and usually are not autistic themselves. Parents of people with schizophrenia more often have schizotypal traits. The speaker stresses this does not make them bad people or "crazy," but it leaves them less positioned to press legislators. The speaker concludes that research money follows the lobby.

On heritability, the speaker says that if one identical twin has paranoid schizophrenia, the other's chance of developing it is not 100% but is far higher than chance. Asked whether anyone has avoided it through lifestyle, diet or exercise, the speaker says yes, though not in a way that can be credited to one factor. Active military service and methamphetamine use are named as meaningful added risks for people genetically predisposed to psychosis, with stress offered as the common thread.

Methamphetamine is described as probably producing the largest short-term dopamine release of any drug, creating a hyperdopaminergic state in which every idea seems good and everything seems to be about oneself. The speaker mentions viral videos and talk of "meth strength" but says they have never seen it proven. Asked how it compares with Adderall, the speaker notes that Adderall and Vyvanse (transcribed as "Vivance") are amphetamines, that effects depend on dose, and that it is unknown exactly what addicts are taking. The book reportedly has a long section on stimulants, including caffeine, nicotine, Adderall, Vyvanse, modafinil and armodafinil, with the pros and cons of each.

The key difference, according to the speaker, is that methamphetamine is neurotoxic. This leads into MDMA. Early studies, including one published in Science, reported neuron loss in non-human primates given MDMA, and that message spread. The paper was later retracted because the lab had accidentally injected methamphetamine instead of MDMA. The speaker says they do not know how the mix-up happened. Asked why a lab would have methamphetamine on hand, the speaker explains that research labs hold controlled substances under strict accounting, down to the microliter, with regular inspections. Their own former lab also worked with modified rabies viruses and adenoviruses.

The speaker adds personal experience. As an undergraduate in the early 1990s, they worked in a thermoregulation lab that injected rats with MDMA to investigate deaths at raves. In the speaker's account, the deaths came down to hyperthermia at raves, not drinking enough fluids, and amphetamine use, and the field worked this out over time: people need to stay hydrated. The speaker says there is no evidence that MDMA is neurotoxic. Stories about "holes in the brain" probably involved methamphetamine, possibly mixed with some MDMA. This is part of their argument for legal, reliably produced and safely administered MDMA.

The speaker, who says they have been very close to the process, gives two reasons the most recent FDA application for MDMA-assisted therapy failed. First, officials in the previous administration felt there was no good control or placebo condition. The speaker calls that fair, while noting many drugs face the same issue. Second, there were one or possibly two cases of sexual impropriety by therapists while participants were under the drug. The speaker notes that a single incident like that can sink an entire initiative, and expects approval in the coming years to require safeguards on how the drug is given.

The vulnerability of someone on MDMA is presented as the central concern. Cardiac health can be screened before and managed after, but the real question is whether the therapist acts in the patient's interest. The speaker supports psychedelics for depression and trauma but says the psychedelic community has long sat at the edge of other techniques. A foot massage given because a patient says trauma is held in the feet is offered as an example of the gray zone of MDMA-assisted therapy done outside formal settings. The speaker also asks whether therapists should ever touch people under these drugs. Somatic work might help someone who feels out of body or has bodily trauma, such as rape or childhood abuse, but touch carries obvious risks. Asked whether touch is normal in psychedelic practice, the answer is "not necessarily."

Some parameters are reported as agreed from clinical trials. For MDMA, two sessions, with an initial dose of 80 milligrams and a booster of about 50 milligrams halfway through, or dosing by body weight. The speaker also mentions spacing sessions three weeks apart, and possibly a single session for psilocybin. Therapy should go with the drug before, during and after. The speaker calls the results remarkable: 60 to 70 percent with significant symptom reduction, and remission in some cases.

people need therapy going in, they need therapy during, and they need therapy coming out for the best results

There is no standard for the therapeutic conversation itself, such as whether to push a patient into pain or let them pull back. The speaker admits that ordinary talk therapy is also unstandardized. The speaker mentions joining the board of Esalen (transcribed as "Esselin") on the California coast, which has a center for theory and research focused on human potential. They describe the wave of somatic, breathing and psychedelic therapies from the 1960s through the 1990s. Whether to combine these approaches is presented as an open question. The speaker's stated hope for the book is that readers will grasp underlying principles well enough to judge new breathwork practices, supplements, drugs and peptides as they appear.

All this stuff is done by feel in the psychedelic community.

The speaker presents trauma recovery as a four-step process that applies whether or not psychedelics are involved:

1. A willingness to address the trauma. 2. Experiencing the painful feelings in a safe environment, which cannot be avoided. 3. Recalling the explicit memory of what happened while calm, without reliving the feelings. The memory is not lost; the goal is to separate the emotion from it. 4. Transmuting the bad experience into an effort to create good for oneself or the world.

you're trying to uncouple the memory from the emotions

For the fourth step, the speaker gives the example of parents who have lost a child and eventually plant a tree, teach, or support other bereaved parents. The argument is that skipping steps fails. Telling someone to go do good with their loss does not work, and telling them only to feel the pain can trap them in a spiral. The speaker criticizes the cultural emphasis, during millennials' adolescence and twenties, on feeling one's feelings without discussing the later stage of no longer feeling so bad about what happened. In this framework, MDMA could help most with the first or second step: feeling one's feelings safely in the right setting.

there was this over emphasis on like feeling your feelings.

Asked about MAPS studies of MDMA for soldiers with PTSD, the speaker defers to Rick Doblin on specifics. The speaker knows of at least three clinical trials using weight-based but not extreme doses in which participants moved through PTSD in about four to six weeks. These involved two MDMA sessions about a month apart, with talk therapy throughout. At least one trial was specifically with veterans. Others included veterans alongside non-veterans, which the speaker sees as useful for comparing different kinds of trauma.

The speaker says the ibogaine work has completely changed their view of psychedelic therapy. They find it ironic that the first psychedelic likely to become legal for PTSD may be the most intense one, comparing it to learning a martial art by being sent into the octagon to get beaten up. Ibogaine (transcribed as "Abigail") is described as not recreational. When it is followed by DMT, outcomes appear very good for many people.

the first psychedelic that will likely be legal for the treatment of PTSD is going to be the most intense one

The speaker then adds a caveat and expects some pushback for it. They know of two deaths at these clinics, which clinics must report, and say the deaths may correlate with prior fentanyl use. The risks involve the heart and breathing, which are linked, and patients are heart-rate monitored. The speaker says this has to be discussed openly if ibogaine is to become legal.

The speaker names people who say they have benefited a great deal, including DJ Shipley and Marcus Capone, and mentions many others. They also stress that a few people did not have a good experience. Sean Ryan, after a slip of the name, is cited as speaking publicly about a negative experience. The speakers think his account may concern the DMT that some clinics, though not all, give afterward. One speaker recalls that he has talked about undergoing exorcisms. The speaker who raised him says they have not taken ibogaine themselves.

To explain why psychedelic journeys can terrify some people, the speaker draws on their own psychedelic experiences. Such journeys can show that everyone contains both good and evil. The hypothalamus drives us to satisfy urges, while the forebrain can suppress them. Asked whether people describing "demons" are perceiving these drives, the speaker lays out a top-down/bottom-up model. Bottom-up circuits generate impulses. Top-down regions inhibit them, and much of life is the tension between the two. The seven deadly sins are mapped onto hypothalamic drives such as rage, envy and lust. The forebrain's control can be strengthened through learning, as children and puppies learn to hold back impulses for reward or to avoid punishment.

As an example, the speaker recounts the University of Texas at Austin tower shooting. In their telling, a former Marine wrote in his diary, killed his wife and mother with a knife, then climbed the tower with a rifle and shot 14 people. The speaker thinks a 15th died later and that the total was around 18 or 19 when a pregnant victim is counted. He was shot by a security guard. His diary said he did not know why he wanted to do this and asked that his life insurance fund mental health research. An autopsy found a tumor in regions including the amygdala, hypothalamus and thalamus, which the speaker calls low-level structures involved in perception and impulse.

I don't know why I want to do this

The speaker rejects the conclusion that the tumor simply made him do it. The lesson they draw is that most people never even conceive of such acts. Ordinary restraint is presented as forebrain work: the passing thought at Niagara Falls about jumping, or the urge to shoplift, drink or cheat that some people feel and stop. In the speaker's view, people like to think they are simply moral, when for many of them restraint means actively holding an impulse back.