HBOT ranks as one of the highest value health therapies I’ve done. Results from 60 sessions:
+ wiped out all systematic inflammation in my body. Below detectable levels. This is wild.
+ 300% increase in VEGF (formation of new blood vessels)
+ telomerase activity of a 12 year old, associated with biological age
+ 250% and 290% increase in Short-Chain Fatty Acids and n-Butyrate, respectively, important microbiome markers
+ complete elimination of metabolic imbalance in my gut
+ 28.6% reduction in a dementia marker
+ improved muscle oxygenation
+ dramatic improvements to whole body skin health
The outcomes match what we observed in the scientific literature and what we predicted in deciding to do this therapy.
What's notable is that after achieving elite level biomarkers over the past four years, my team and I have struggled to find new therapies that meaningfully improve my biomarkers. HBOT achieved that.
🧵
0/ Inflammation
Post HBOT, there’s no detectable systemic inflammation in my body (hsCRP). Inflammation is the foundation of disease and all things bad health. Before HBOT, my inflammation markers were in the top 5% of 18-29 year olds (you get more inflamed as you age).
HBOT eliminated systematic inflammation in my body to a point it was below levels of detection. This is wild.
A second test to confirm the inflammation measurement, my CRPm, an epigenetic biomarker proxy for inflammation, is in the lowest 1%.
1/ Vascularization
300% increase in VEGF drives the formation of new blood vessels which improves tissue perfusion and oxidation, essential for improving fitness, physical and cognitive performance . Also has further pro-longevity effects on gene expression.
Improved muscle oxygenation, reached the same level of exercise power (wattage) at more than double the muscle oxygenation.
2/ Telomeres
Telomerase activity of a 12 year-old (7.7%). Telomers keep chromosomes from falling apart. They are essential for healthy cell division, including stem cell renewal. As we age, cells lose their telomerase activity and telomeres get shorter, when telomeres are too short, cells become senescent and contribute to accelerated aging.
While telomerase activity is positive in healthy cells, the mechanism is also hijacked by cancers to enable endless cell divisions, hence an aberrantly high telomerase activity (higher than 20% is indicative of potential cancer). I did not have a baseline measurement for this biomarker.
Telomere length: the lab messed up the sample to measure telomere length so I’m getting retested. Will share results when available.
3/ Microbiome
Dramatic improvements in my microbiome:
+ Akkermansia muciniphila increased by 1,000%.
Pre-HBOT: Not detectable → Post-HBOT: 4.2E4 CFU/g
Akkermansia is linked to gut barrier integrity and metabolic health.
Note, I started Akkermansia on August 9th and two months later it was barely detectable. When we measured after HBOT, it had increased by 1,000%. It is unclear how much HBOT contributed to this increase, however given the barely detectable levels two months into taking it, it’s possible HBOT played a role.
Methane Dysbiosis improved (decreased): indicative of improved immune function in the gut.
290% increase in n-Butyrate Concentration, from 3.8 → 11.1 micromol/g (290%)
Complete elimination of metabolic imbalance in the gut
Pre-HBOT: imbalance score 7 (high) → Post-HBOT: imbalance score 0 (ideal) this is a general score based on the beneficial metabolic products of the healthy gut bacteria, including the aforementioned SCFAs and n-Butyrate as well as the enzymatic activity of gut bacteria which support the gut in disposing of drugs and other harmful chemicals (beta-glucoronidase)
A high metabolic imbalance score might be indicative of lack of pre-biotics in the diet (including fiber), interestingly in my case HBOT was enough to reverse the metabolic imbalance despite no significant change in my diet.
4/ Brain health
28.6% reduction (from 0.14 to 0.1 pg/mL) in the brain damage and dementia marker pTAU127.
The phosphoprotein p-TAU217 is a specific marker for Alzheimer disease, with levels higher than 0.18pg/mL potentially indicative of plaque accumulation in the brain, hence keeping this marker at the lowest end is a great relief and a sign of improved brain health.
Lower pTAU127 means less tau accumulation and lower brain inflammation, which is associated with better memory, processing speed, executive function and neuronal stability.
5/ Skin
+ my facial skin got 1 year younger (Pre-HBOT: 39 years→ Post-HBOT: 38 years)
+ major improvement in UV spots score (55th→ 68th percentile)
Indicative of significant removal of Advanced Glycation End-products AGEs from the skin, ostensibly due to improved vascularization
Likely other skin benefits:
+ 12.8% increase in collagen fiber density
+ 144% increase in elastic fiber length + reduced fragmentation 90% to 10%.
+ 40.9% increase in skin blood vessel count
+ 84.3% increase in CD31 blood vessel specific marker
+ 21% reduction in senescent cells
Note, the above four measurements are from a 2021 prospective clinical trial exploring how HBOT affects skin aging in healthy older adults (age 68). While I did not complete these specific measurements, it’s possible that my skin improvements were similar. Subjectively, I’ve never seen a more dramatic improvement to my skin quality than from these 60 HBOT sessions.
6/ My HBOT protocol in a glance
+ Hard shell chamber from @hpotech_medical
+ 2 ATA
+ 90 minute sessions
+ 20 min breathing 100% oxygen. 5 min break. Repeat.
+ 60 sessions within 90 days.
The protocol is consistent with the most credible clinical studies up to date.
I started my protocol Nov 1st 2024, with a break during my India and China tour, and resumed on Dec 16th 2024 till Jan 20th 2025, having finished a total of 60 sessions.
This chamber from @hpotech_medical was really helpful in allowing me to work during my daily HBOT sessions. Otherwise, it would have been impossible to make the time to complete 60, 90 minutes sessions during 90 days.
Inside my chamber the oxygen level is 21% which is the same as earth's atmosphere. Other chamber maintain 100% oxygen inside creating increased fire risk.
7/ Limitations
While doing HBOT I also underwent three total plasma exchanges (TPE).
8/ Don't Die Certified Clinics - coming soon
Wanting to do HBOT and but don't know where?
Soon, you will be able to find a clinics and health practitioners that are Don't Die Certified, meaning they follow the same scientific rigor and measurement as my protocol.
We have our first few clinics ready to go and will be launching soon. Stay tuned.
I used a @hpotech_medical chamber
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I am looking into exosomes from human trophoblast stem cells (hTSC) given their regenerative potential such as anti-inflammatory effects, metabolic optimization, telomere lengthening, and cellular senescence reversal.🧵
0/ Exosomes are nano-sized extracellular vesicles released by almost all cell types. They carry bioactive cargo (RNAs, proteins, lipids) and mediate intercellular communication, influencing many cellular processes like tissue repair, inflammation, and aging.
1/ The TSC exosomes are produced by human trophoblast stem cells, these cells divide to make up the placenta and are from earlier stages of development than umbilical cord MSCs and HSCs.
Wait a second, I know what you’re going to say. Hold that knee-jerk reaction and let me explain.
First, here’s what’s going to happen:
+ Don’t Die becomes history's fastest-growing ideology.
+ It saves the human race.
+ And ushers in an existence more spectacular than we can imagine.
It is inevitable. The only question is: will you be an early or late adopter?
Why is it inevitable?
Four fundamental shifts are happening right now: 1) We are giving birth to superintelligence (AI). 2) No existing ideology solves AI alignment. 3) With AI, our species’ survival is not guaranteed. 4) With AI, individual biological death is no longer inevitable.
We are at risk of extinction without a unifying framework to solve human alignment and AI alignment.
Why Don’t Die?
All existing frameworks are too narrow…
+ Democracy governs civic matters
+ Capitalism dictates wealth
+ Religion cares for the soul
Don’t Die speaks fluently with…
+ the universe through physics
+ AI via mathematics
+ software via computation
+ living things via biology
+ humans via storytelling
+ truth via memetics
Don’t Die is a universal translator and the grand unifying theory of existence.
I am aging slower than anyone in the world.
#1 in a fierce competition among 5,677.
My score is off the charts.
And I'm genetically disadvantaged.
What does this even mean? 🧵
0/ Biological Aging is mostly driven by the environment, habits and lifestyle choices and is malleable to interventions.
Unlike chronological aging, biological aging is malleable and is a direct outcome of your behaviour and lifestyle choices. A seminal study in over 2000 twins (gold standard for studying genetic effects) found that longevity was only 25% hereditary.
In other words, your genes determine only 25% of your biological aging speed and patterns, while the rest (75%) is up to you to decide and influence.
Speed of aging is the most dynamically responsive as it relies on estimating the speed of aging from a snapshot in time, hence allowing a quick intervention-measurement loop, allowing for the fast evaluation of therapies and protocol for their effectiveness as rejuvenation interventions.
Biological Age will normally follow the speed of aging, with some considerable delay for trends to appear.
Imagine a car changing its speed, you will be able to see the change directly at the speedometer (speed of aging) much faster than seeing when you reach your destination based on the new speed.
1/ What are DNA methylation biological aging clocks?
DNA methylation is a process where methyl groups are added to DNA, acting like switches that can turn genes off (other epigenetic switches are on-switches, like DNA acetylation).
This affects how our cells read and express genes, and as we age, these switches change in predictable ways. Age-associated alterations in the mammalian DNA methylome are well-documented and thought to promote diseases of aging, such as cancer.
DNA methylation biological aging clocks use these changes to estimate a person's biological age, which can differ from their chronological age (how many years they've lived). These clocks are developed by identifying specific DNA sites (CpG sites) where methylation levels correlate with age, creating a model to predict biological age.
These clocks are acknowledged as highly accurate molecular correlates of chronological age in humans and other vertebrates.
Published this week a study used three distinct epigenetic aging clocks to show that more hotter days on average (caution-level and extreme level heat) make you age faster. 🧵
Background
0/ The study tracked biological age in 3686 adults over 56 years across the US in relation to outdoor ambient heat exposure.
1. Comparisons were done for short and long-term differential exposure to outside heat based on daily heat index, as assessed by number of heat days: (heat caution= 80° to 90°F (26.7° to 32.2°C); 90° and 103°F (32.2° and 39.4°C)) as provided by the National Weather Service based on the participants’ home address.
One toxic chemical, NAPR, an organic solvent used in metal cleaning, foam gluing, and dry cleaning, increased by 728%.
If you were exposed too, here is what you can do. 🧵
0/ I suppose if there was one person in LA who was routinely measuring their toxin levels when the fires broke out, it would be me.
My urinary toxins panel taken at the height of the LA wildfires on January 28th, 2025 showed 9 acutely increased metabolite toxins (4 of which above the 95th percentile and the other 5 between the 75th and 95th percentile).
A similar previous panel taken in October 2024 had all these toxin metabolites within normal or undetectable range.
Note, in-between the baseline test of Oct 2024 and the most recent test of Jan 28th, I spent a week in India which may have also contributed to an increased toxin load. More on that below.
Let us take a closer look at these metabolites, what toxic exposures and health hazards they indicate, and how these tie to wildfire and burning homes, as well as air pollution in general.
Let us also examine efficient approaches to the detoxification of wildfire fumes inhalation.
1/ Almost all the elevated toxic metabolites come from exposure to the fumes of burning plastics and synthetics from homes, rather than burning trees in the wildfire itself.
The acutely elevated toxic metabolites in my urine sample from January 28th, 2025 can be categorized in three groups based on the source.
1) Phthalate metabolites 2) Metabolites of Volatile Organic Compounds (VOCs) 3) Other metabolites including; herbicides, styrenes (insulation materials), and perchlorate (flammable agent)
Let us explore each metabolite, its origin, how it relates to wild and urban fires, and what risk and hazards it poses.
The New York Times is preparing to publish a hit piece on me.
I found out this story is running because a reporter from NYT emailed me and my colleagues her “fact-checking” questions. This is standard practice before publishing a story.
“I am working on a story about Bryan Johnson and his weaponization of non-disclosure agreements over the years to cover a range of bad behavior…”
This journalist is trying to construct a narrative about me.
Let’s take a look at what she’s trying to do.🧵
Step 0: Motive.
Why is The New York Times coming after me? It’s a clash of self-serving narratives:
1. The New York Times wants a sensational story. Clicks = money. 2. The journalist wants to “take down” another target. 3. My ex is chasing clout by recycling allegations that have already been rejected in two legal forums. 4. Don’t Die is growing fast, threatening status-quo power. This makes me a target.
I’m fortunate that I have social reach. But what’s really unfair is when this happens to people who have limited recourse.
This isn’t just about me, this is about how the media manufactures reality. If a journalist is going to try and construct a narrative about any one of us, we should evaluate the foundation it’s built on.
Step 1: Establish the Pretext for a Smear
For five years, my ex has been trying to extract money from me and one of her principal tools has been a series of false allegations.
All her attempts have failed.
Two separate legal forums ruled against her. The arbitrator wrote that her own evidence contradicted her own story. The District Judge not only rejected her claims, she sanctioned and fined her attorneys for their “serious allegations [that were]…factually and legally baseless and frivolous”.
She was ordered to pay me $500k.
And yet, here we are. A New York Times reporter is reviving accusations that were twice rejected by two legal forums, repackaging them for clicks. The journalist knows it’s easier to manipulate public opinion.
This is how the media operates: if they can’t get you legally, they try to get you socially. They don’t need truth. They need narrative.