They Built a Movement Around Not Dying. Both Now Have Incurable Diseases.

Episode Overview

• Bryan Johnson and his partner of five years, Kate Tolo (co-architect of the "Don't Die" movement), discuss how they are using extreme self-quantification and biotechnology to tackle their newly diagnosed "incurable" conditions: Kate’s endometriosis and Bryan’s autoimmune gastritis.
• Kate details her $2.6 million, 100-day protocol tracking 1,900 biomarkers across her menstrual cycle—requiring a 5-hour, 100-task morning routine—aimed at solving the massive data and "legibility" gap in female health.
• Bryan breaks down his frontier medical interventions, including taking 24 stomach biopsies to grow a "mini-Bryan" in a dish, sequencing 1 million immune cells, and using Yamanaka factors to reset his cells' epigenetic age from 48 to 0 (a stem cell and immune banking service he is rolling out to customers).
• The conversation explores the philosophical evolution of "Don't Die" in the age of AI, shifting from live events to building an "anti-entropic system" centered on saying "yes to existence," alongside Bryan's quantified psychedelic experiments (psilocybin and 27 mg of 5-MeO-DMT).
• In a raw, unscripted conclusion, the focus turns to the psychological weight of becoming a public symbol and Bryan’s emotional breakthrough regarding childhood silence and trauma with his father.

Key Concepts

• Saying "Yes to Existence" in the Age of AI: Bryan suggests that relative to artificial intelligence, humans may be like cavemen incapable of saying anything intelligent about what is coming. Because the future is unpredictable, the only coherent objective function for humanity is to simply say "yes to existence" under all circumstances—reframing longevity as merely being excited for one tomorrow at a time.
• The Female Health "Legibility" Gap: Rather than trying to biohack herself into the healthiest person in the world, Kate’s $2.6 million protocol (measuring 1,900 biomarkers over roughly 100 days) is a "legibility project" to help women understand their own biology. Current medical baselines largely ignore the menstrual cycle, even though cited research shows ~50% of 400 measured blood metabolites fluctuate across the cycle, and female cholesterol can be up to 19% higher in the first half of the cycle than the second (causing ~6% of women in one study to test high/out of range in the first half before returning to normal in the second). Furthermore, while textbook models assume ovulation occurs on Day 14 of a 28-day cycle, Kate notes most women ovulate around Day 17 (and she ovulated on Day 23).
• The Endometriosis Diagnostic Failure: Endometriosis confirmedly affects ~1 in 10 (10%) women—likely much higher—and takes an average of 6.5 years to diagnose. After suspecting she had it for 7 years (since age 22), Kate was diagnosed in 42 days (alongside PMOS, formerly PCOS, and adenomyoma) using four modalities. Crucially, her standard transvaginal ultrasound and standard MRI both came back negative; it required an endo-specific protocol ultrasound with a trained specialist, an endo-specific protocol MRI, a blood test (which Kate is working to bring to the US as an at-home draw), and a saliva test to confirm positive diagnoses. However, Kate admits that separating signal from noise in daily tracking is extremely difficult and she is unsure how science could robustly measure 100 women at once to current standards.
• Organoids and Induced Pluripotent Stem Cells (iPSCs): Following their Netflix documentary, both Kate and Bryan were ironically diagnosed with "incurable" diseases, which they aim to cure or make major headway on within 6 to 12 months with help from 3 to 4 international research groups each. For Bryan's asymptomatic autoimmune gastritis (linked immunologically to the hypothyroidism he has had for ~30 years, where immune cells attack his stomach's endothelial lining), his team sequenced 1 million immune cells and took 24 stomach biopsies under general anesthesia to grow a "mini-Bryan" in a dish overseas. Separately, using a 150-milliliter blood draw and Yamanaka factors, he created iPSCs that reversed his cells' epigenetic age from 48 to 0. While ongoing global clinical trials use iPSCs to replace dying neurons in Parkinson's disease and heart tissue in heart failure, Bryan notes a key caveat: Yamanaka factors do not fix the somatic mutations and DNA/mitochondrial errors accumulated over 48 years of cell divisions.
• Sleep Data vs. Wearable Biological Age: Sleep patterns hold deep biological signals; for instance, an Eight Sleep AI model trained only to identify whether two nights of sleep came from the same person was able to predict chronological age within a 3 to 3.5-year margin of precision using markers like heart pumping efficiency. Conversely, Kate and Bryan discount many consumer wearable "biological age" algorithms as "washouts" that lack measurement robustness, have high variability, and arbitrarily combine a few markers.
• Anti-Entropic Systems Over Human Summits: Bryan and Kate stopped hosting live "Don't Die" summits for two reasons: scale (summits reached ~1,700 people, whereas social media reaches millions) and longevity. They realized human-led organizations are fragile compared to "anti-entropic systems"—like DNA or religions—that can self-sustain for centuries without a CEO, aiming to replace society's current deadly status trophies (money, power, and status at all costs) with existence as the highest virtue.

Quotes

• At 0:00:01 - "If we are to be Don't Die, we both have to cure our incurable diseases. So either they get us or we get them." - Bryan framing the high-stakes irony of his and Kate's diagnoses following their documentary.
• At 0:01:38 - "Honestly, I feel like it's out of my control. I don't think I am in charge of whether or not I love Bryan. My body just does." - Kate reflecting on her five-year relationship with Bryan, which they kept private for the first three years.
• At 0:07:54 - "I think the purest insight is it's possible no human can say anything intelligent about AI. And I don't think we fully internalize that. That relative to AI, we may be cavemen in terms of our ability to understand what's coming." - Bryan hedging on human predictions about artificial intelligence.
• At 0:08:33 - "What I really concluded is that I simply want to say yes to existence. That's all I can say. Outside of that, I have no idea what to say, I don't know what to think, I don't know how to feel, other than like, I say yes to existence under all circumstances." - Bryan distilling the foundational philosophy of the Don't Die movement.
• At 0:10:25 - "Being excited about tomorrow is the same thing as living forever. You're just doing one tomorrow at a time." - Bryan reframing the intimidating concept of immortality into a daily mindset.
• At 0:12:08 - "So we're spending $2.6 million on my protocol. We're measuring 1,900 biomarkers. I'm doing around 100 days of this just to get baseline data on what happens to a female's body as she goes through the menstrual cycle." - Kate explaining the scope and financial investment of her female health project (speaking on Day 29 of the protocol).
• At 0:12:56 - "Something as simple as cholesterol, we know that in the first half of the cycle, it can be up to 19% higher, the result, than in the second half of the cycle." - Kate illustrating how standard medical testing fails to account for menstrual cycle fluctuations.
• At 0:15:21 - "He's able to essentially organize four different ways to confirm my diagnosis and get me diagnosed in something like 42 days. So like an insane change, whereas women typically take 6.5 years to get a diagnosis." - Kate contrasting her rapid endometriosis diagnosis with the standard multi-year medical delay.
• At 0:20:44 - "The hypothesis we had is that Kate is not legible to herself. She can't understand herself. She struggles to understand herself. And we also were trying to explore this hypothesis that women are not broadly legible to society." - Bryan explaining the underlying thesis driving Kate's biomarker tracking.
• At 0:22:47 - "It's not just about biomarkers. Kate is not trying to be the healthiest person in the world. She's not trying to biohack herself. It's a legibility project." - Bryan clarifying that Kate's protocol is designed for biological understanding rather than competitive optimization.
• At 0:27:34 - "Here's what it is: it's like an alien is inside of you, fusing your guts together, and then it feels like you get kicked in the balls. That's what endometriosis is." - Bryan translating the physical pain of endometriosis into terms men can grasp.
• At 0:33:26 - "So I went under general anesthesia, we had a scope down my throat, and we took 24 biopsies of my stomach. And so we biopsied the actual autoimmune condition." - Bryan detailing the invasive tissue collection used to grow a "mini-Bryan" organoid overseas.
• At 0:35:37 - "The way this works is I did a blood draw, 150 milliliters. You separate out the cells, and you take the cells, and then you apply Yamanaka factors. And that will reverse the age of my cells from 48 to 0 epigenetically." - Bryan explaining the process of creating induced pluripotent stem cells (iPSCs).
• At 0:43:35 - "We tell people to not be intimidated by the complexity of the world, the chaos, the disagreement, that just think about and understand their health through one marker: their resting heart rate before bed." - Bryan offering a simplified entry point for personal health tracking, though he notes it is an oversimplification.
• At 0:48:26 - "I am not doing this for my happiness. I am not. On my second week, I had a panic attack. My cortisol was through the roof." - Kate candidly admitting the severe psychological toll of her 5-hour, 100-task morning routine.
• At 1:02:38 - "We are a society that says your highest status is given with accumulation of money, power, and status. That's the ultimate trophy we give out to people in society... We will give you that trophy even if you kill yourself, even if you kill others, and even if you kill the planet." - Bryan critiquing modern cultural incentives that reward self-destruction.
• At 1:10:12 - "You become not a human, you're a symbol. And that's a giant—that's the biggest trade-off you can make in life. Like you walk somewhere and people relate to you as something that you're not, ultimately." - Kate describing the personal alienation that comes with public notoriety.
• At 1:39:45 - "The system I created is I said, Morning Bryan is my best Bryan, and he gets to have the authority to make decisions in my life. So that means Evening Bryan, who comes on duty around 5:00 p.m. and then hits his peak at 7:00 p.m., he does not have authorization to eat food ever." - Bryan sharing his governance framework for eliminating late-night willpower failures.
• At 1:55:46 - "I said, 'Dad, I want you to understand what silence feels like.' You know, and like, it's like being in middle school—like, I'm going to break down and cry—when like, I'm waiting for my dad, and he's not there." - Bryan breaking down in tears while recounting a recent studio session where he used silence to communicate his childhood pain to his father.

Takeaways

• Anchor your health on Resting Heart Rate Before Bed: While acknowledging it is a simplification, use your resting heart rate right before sleep as the single primary accounting metric for how your daily habits affect your body and sleep quality.
• Put "Morning You" in charge of "Evening You": Recognize that willpower is depleted by 5:00 p.m. to 7:00 p.m.; strip "Evening You" of decision-making authority by letting "Morning You" set strict, non-negotiable rules in advance.
• Stop eating 4 hours before sleep: If your bedtime is 10:00 p.m., finish your final meal by 6:00 p.m. and revoke all authorization to eat afterward to lower your pre-bed heart rate.
• Cut off all caffeine by noon: Eliminate afternoon stimulants so they do not elevate your resting heart rate or disrupt sleep architecture at night.
• Implement a 30-to-60-minute wind-down routine with a physical book: Turn off all screens at least 30 minutes before bed and spend 30 to 60 minutes winding down by walking, talking to a friend, or reading a physical book in hand (which Bryan claims is on par with sleep medication).
• Switch to red or amber light in the evening: Actively manage your evening light environment by avoiding white and blue overhead lights prior to bedtime.
• Factor menstrual timing into female blood work: Women interpreting blood panels (such as cholesterol) should track which phase of their menstrual cycle they are in when tested, as biomarkers can swing significantly (up to 19% for cholesterol) between the first and second half of the cycle.
• Request endometriosis-specific imaging protocols: Because standard transvaginal ultrasounds and standard MRIs can return false negatives for endometriosis, patients seeking answers should specifically seek out trained specialists using endo-specific ultrasound and MRI protocols, alongside emerging blood and saliva tests.
• Treat wearable "biological age" scores with skepticism: Do not over-index on consumer wearable age algorithms, which often lack measurement robustness; focus instead on consistent, raw physiological trends like resting heart rate and sleep consistency.
• Match daily structure to your natural temperament: Be mindful that extreme quantification protocols (like Kate's 6:30 a.m., 5-hour, 100-task morning routine involving RMR masks, Kernel brain scans, and microbiome/hormone testing) can spike cortisol and trigger panic attacks in naturally creative, unstructured personalities—design routines that serve your goals without destroying your mental baseline.
• Seek outside perspective on your psychological blind spots: As Bryan notes when discussing his own emotional patterns, do not assume your subjective self-perception is complete; allow trusted partners and friends to reflect your blind spots back to you.