A 7-minute brain scan from Kernel lets you measure your brain’s true age and explore what makes it younger or older.

Today, you can find our your brain’s real age. In a major milestone for consumer neuroscience, Bryan Johnson just unveiled a 7-minute brain scan that estimates your BrainAge using a sleek new system developed by his company, Kernel. Available now in Culver City for just $50, the scan offers a rare opportunity to peek under the hood of the most complex organ in the universe.

For Johnson, this moment marks nearly a decade of work and over $50 million in personal investment into decoding human cognition. With the Kernel Flow wearable, he’s built a brain activity tracker that operates more like a health lab than a headset.

Whether you’re optimizing for longevity or just curious how your lifestyle choices are affecting your brain, BrainAge gives you a powerful new tool to quantify it. We were curious about BrainAge so we wanted took a closer look and this is what we found out.

What Is BrainAge and How Does It Work?

BrainAge refers to the estimated biological age of your brain, which may differ significantly from your chronological age. A younger BrainAge suggests better cognitive health, while an older BrainAge can be a red flag for potential issues like memory decline, poor focus, or neurodegenerative risk.

Kernel’s scan uses a combination of hemodynamic data (blood flow changes) and EEG (electrical activity) to analyze how your brain functions in real time. This fusion of signals enables high-resolution, research-grade data typically only available in a lab.

This kind of dual-signal approach is backed by years of neuroscience research showing that combining modalities yields deeper insights into cognitive function.

The Science Behind BrainAge

Studies show that lifestyle choices like alcohol consumption, poor sleep, and chronic stress accelerate brain aging, while exercise, high-quality sleep, and mental stimulation can reduce your BrainAge.

One large review found that individuals who engaged in regular physical activity had significantly lower brain age than sedentary peers. Other studies link deep sleep with glymphatic system clearance, which is key to brain detox and slowing age-related decline.

The exciting part? Kernel is not only letting you see where your brain stands today, but encouraging you to experiment. Try fasting, sauna use, nootropics, or a new bedtime routine. Then come back and re-measure.

Coming This Summer: The Full Brain Panel

Kernel is planning to release an expanded battery of tests in summer 2025 that will measure:

• Complex attention
• Executive function
• Learning and memory
• Language
• Perceptual-motor control

These are core domains of brain performance and have been shown to decline with age. By quantifying them, users can move from anecdotal hacks to validated interventions.

It’s not yet clear whether this will roll into Johnson’s Blueprint protocol or become a standalone Kernel product offering. But either way, it signals a future where tracking your brain is as easy as wearing a smartwatch.

Why This Matters for Your Brain and Longevity

BrainAge has the potential to revolutionize personal health tracking. While fitness trackers focus on movement and sleep, Kernel moves upstream to the brain itself.

This is also a breakthrough in accessibility. Functional MRI and lab-grade cognitive assessments can cost thousands and take hours. Kernel’s scan costs $50 and takes less than 10 minutes.

Early users should still interpret results with caution. BrainAge is a proxy, an estimate based on patterns, not a definitive diagnosis. But as a trend line, it opens up entirely new frontiers for cognitive self-experimentation.

For longevity-focused individuals, Kernel’s technology could become as indispensable as a continuous glucose monitor or sleep tracker.

Final Thoughts

Bryan Johnson’s Kernel is turning a decade-long neuroscience moonshot into a $50 tool for the masses. Whether you’re biohacking your way to 120 or simply curious about your brain’s health, BrainAge could be your next great feedback loop. Quantifying brain performance may finally be as simple as stepping into a booth, putting on a headset, and pressing start. We’re planning to try it ourselves soon, especially given how affordable it is and how close it is to home.

Bryan Johnson Demoing Kernel Flow

Bryan Johnson’s Kernel Flow Wearable Video

🩺 Disclaimer

The content on I Won’t Die is for informational and educational purposes only. It is not a substitute for professional medical advice, diagnosis, or treatment. Always consult a qualified healthcare provider with any health concerns.

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After 60 sessions in 90 days, Bryan Johnson reports full-body rejuvenation, reduced inflammation, and biological age reversal with hyperbaric oxygen therapy.

Today, Bryan Johnson revealed why he installed a hyperbaric oxygen chamber in his garage. When it comes to longevity, Bryan Johnson is no stranger to the extremes. However, in his latest video, he takes it to the next level by adding a clinical-grade hyperbaric oxygen therapy (HBOT) chamber to his garage. Why? Because after years of testing nearly every known longevity protocol, HBOT might be the most effective one yet.

“HBOT is the most effective longevity therapy I’ve done.” – Bryan Johnson, Founder of Blueprint

This bold claim is now backed by a 90-day self-experiment, consisting of 60 sessions, meticulous tracking of biomarkers, and an installation that let him merge therapy with daily work life.

Why Bryan chose to install an HBOT chamber at home

Getting to a clinic 60 times in 90 days would be nearly impossible for someone running four companies. So Bryan solved the problem the Blueprint way: he installed a pressurized, hard-shell HBOT chamber at home next to his workout equipment. This setup allowed him to stick to a strict protocol without disrupting his schedule. Better still, the chamber’s environment remained at 21% oxygen, making it safe to bring electronics inside. That meant he could work while undergoing therapy.

The protocol:

• Pressure: 2 ATA (100% oxygen at a pressure of 2.0 atmospheres absolute (ATA), which is twice the atmospheric pressure at sea level)
• Duration: 90 minutes per session
• Schedule: 60 sessions in 90 days
• Oxygen delivery: 20 minutes of 100% oxygen via mask, followed by 5-minute breaks

What changed after 5,400 minutes inside the chamber

While initial sessions felt slow, claustrophobic, and mentally challenging, the results proved worth it. Here are some of the standout changes Bryan measured across key longevity markers:

Inflammation

• hsCRP: Dropped to undetectable levels
• In Bryan’s words, “HBOT took inflammation in my body to zero”
• This could mean a major defense against age-related disease

We’ve been working to lower our own inflammation since receiving a high-sensitivity CRP (hsCRP) reading of 4.38 mg/L in January during the Blueprint Advanced Panel. As of earlier this month, we’ve brought it down to 3.5 mg/L. It’s progress, but not yet optimal. Bryan’s results suggest that hyperbaric oxygen therapy, though costly, could be a protocol worth exploring more seriously.

Skin rejuvenation

• Collagen density: Increased by 12.8%
• Elastic fiber length: Up 144%
• Fragmentation: Reduced from 90% to 10%
• Blood vessel count: Up 40.9%
• UV damage: Improved by over 10% based on multispectral imaging

Bryan called this the “world’s best whole-body skin rejuvenation therapy”

Telomere length

• Baseline (March 2024): 11.4 kb
• Post-HBOT: 11.7 kb
• That’s a 2.6% increase, equivalent to regaining roughly a decade of biological aging
• For context, his telomere length now matches that of an average 10-year-old

Gut health

• Akkermansia: Increased 1,000%
• Despite previous supplementation, it remained undetectable before HBOT
• Suggests oxygen therapy may significantly boost microbiome absorption and gut barrier integrity

Vascular growth

• VEGF (blood vessel growth factor): Increased by 300%
• Bryan noted, “I wonder how many miles of new blood vessels I just laid down”

Alzheimer’s marker

• p-Tau217: Decreased by 28.6%
• A key protein associated with neurodegeneration
• Bryan was already below the danger threshold, but the drop still impressed

Creating a new model for HBOT clinics

Realizing many people struggle to access HBOT or track its effectiveness, Bryan is now working on a new program called Blueprint Quantified. It will be a certification program for longevity clinics. The vision is simple: take a baseline, do the therapy, and then measure again to verify results. Bryan believes it’s a system designed to transform health care and provide accountability for every intervention. We can’t wait for this program to roll out in Southern California.

Final Thoughts

Bryan Johnson’s experiment was a personal challenge and a model for the future of precision longevity. With measurable reductions in inflammation, gains in skin health, vascular growth, gut function, and even telomere length, hyperbaric oxygen therapy proved to be more than hype.

Whether it ends up in home garages or certified Blueprint clinics, HBOT may soon be a mainstream tool in the anti-aging arsenal. And if Bryan’s results hold up, he may have just helped redefine what aging looks like.

🩺 Disclaimer

The content on I Won’t Die is for informational and educational purposes only. It is not a substitute for professional medical advice, diagnosis, or treatment. Always consult a qualified healthcare provider with any health concerns.

🚀 Get Started with Blueprint

Start optimizing your health today with $25 off your first order! Use our referral code to begin your Blueprint journey and take control of your longevity.

🏋️‍♂️ Track Your Sleep, Workouts & Recovery

Boost your performance and recovery with Whoop. Join with my referral link to get a free WHOOP 5.0 and one month free!

📲 Download the I Won’t Die App

Stay ahead with the latest news, updates, and insights. Download the I Won’t Die app now on the Apple App Store and Google Play!

📩 Contact Us

Have tips, photos, or questions? Want to collaborate? Reach out at [email protected] — we’d love to hear from you!

🔗 Stay Connected

Follow us on Don't Die, Facebook, X, Instagram, YouTube, and LinkedIn for Blueprint longevity and Bryan Johnson updates.

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Bryan Johnson’s Bitcoin Conference 2025 talk revealed how sleep and longevity may outperform even the most bullish crypto bets.

Today, at Bitcoin Conference 2025 in Las Vegas, Bryan Johnson took the stage with a message no one saw coming. Instead of charts and halving cycles, he spoke about sleep, aging, and the radical possibility that we might be the first generation to beat death. “Wouldn’t it be cool if we were all around for the last Bitcoin halving in 2140?” he asked. Then he made his case.

In front of a crowd expecting blockchain insights, Johnson argued that the most important revolution of our time is not financial. It is biological. The tools now exist to measure, optimize, and slow the aging process. And if we take the opportunity seriously, we may be able to extend life in ways once thought impossible.

According to Johnson, it starts by treating health as a competitive sport. The new metric of success is no longer net worth or portfolio gains. It is your resting heart rate, your sleep score, and how slowly your body is aging. Longevity, he said, might just be the biggest moonshot of all.

Here are the key takeaways from Bryan’s talk at Bitcoin Conference 2025.

Rejuvenation as a Global Sport

Johnson introduced himself not as a tech founder, but as the world’s first “rejuvenation athlete.” Over the past few years, he’s worked to convert health from a vague aspiration into a data-driven pursuit. He tracks 60 of the most predictive markers of aging and invites others to beat his scores.

He founded the Rejuvenation Olympics, where people compete to slow their biological age. Johnson currently holds the number one spot globally with a speed of aging score of 0.55. That means for every 12 months that pass, his body only ages about 6 months.

The One Biomarker That Rules Them All

With so much confusing and conflicting health advice out there, Johnson urged the audience to focus on one critical metric: resting heart rate before bed.

He explained that after achieving eight consecutive months of perfect sleep (a 100% sleep score), he discovered a consistent truth. The lower your resting heart rate at bedtime, the higher your sleep quality, which cascades into better mood, stronger willpower, and improved long-term health.

The Chart: What Increases Resting Heart Rate Before Sleep

Activities like alcohol, stress, eating late, and screen time can all raise your resting heart rate. Even moderate changes, like finishing your last meal four hours before bedtime, can make a big difference. Bryan put up a slide with a lot of ways to lower your resting heart rate.

Build Life Around Sleep

Johnson’s prescription for the Bitcoin crowd was clear:

1. You are a professional sleeper
2. Lower RHR = better sleep
3. Last meal 4 hours before bed
4. Red and amber light only in the evening
5. Consistency is everything
6. Create a wind-down routine

He challenged the audience to try it tonight. Lie down, breathe deeply, check your pulse or wearable data, and track progress by aiming to reduce RHR by 10% in one month.

Why It Matters: From Sex to Cancer to Decision-Making

Sleep, Johnson emphasized, is not just about feeling rested. It’s a core biological process that influences sexual health, immune function, and even cancer detection.

He cited research showing that poor sleep reduces natural killer cell activity (which fights cancer) by 73%. A single night of 4-hour sleep can trigger brain inflammation equivalent to a traumatic injury.

For men and women, reduced nighttime erections are a signal of aging and health decline. Lack of sleep leads the body to shut down essential functions, including sexual health and cancer surveillance.

Eat from the Sky and the Power of Nutrition

Johnson also shared a QR code linking to his personal food protocol, called the Don’t Die Food Guide, which emphasizes nutrient-dense superfoods and a strict standard: every calorie must “fight for its life.”

He called it “eating from the sky.” It’s a reference to clean, longevity-focused nutrition designed to support mitochondrial health and recovery.

Aligning AI and the Don’t Die Philosophy

Johnson closed with a reflection on AI, which he called the most consequential force besides Bitcoin.

As AI grows faster than we can comprehend, he believes a new cultural operating system is needed. Don’t Die, he proposed, is a unifying philosophy that can guide humanity through the age of superintelligence.

It echoes religion in its scope, but it is rooted in science. For the first time, humans can rationally argue that death might be optional. And that shift, he said, requires a revolution in mindset, starting with sleep and self-optimization.

Final Thoughts

Bryan Johnson didn’t just give a keynote, he delivered a wake-up call. The Bitcoin 2025 audience came for a financial revolution, but got a biological one and we loved it!

Prioritize sleep. Lower your resting heart rate. Track your biomarkers. The road to longevity might just be the best path to better decision-making, stronger communities, and yes, maybe even outsized returns in Bitcoin.

The first step? Go to bed early tonight and build your life around sleep.

Full Transcript From Bryan Johnson’s Talk at Bitcoin Conference 2025

So my case with you guys is that the last halving of Bitcoin is 2140, is that not? Wouldn't it be cool if we were all around for that? My message to you is that we may be the first generation who won't die. That has been a ridiculous statement from when time began, and this is the first time that has ever been possible. You can see my slides? No?

Okay, so what I've been doing the past couple years is I've been trying to take a qualitative idea of health and make it into a global competitive sport. Give something numbers, status, and ranking, and humans love to play that game. I've tried to be the world's first rejuvenation athlete. So you see here, I've posted I have the world's best, equals to 60 of the most predictive markers for longevity, and I do so in a way to invite others to try to replicate and beat my scores. But it's also a point to try to say you can, in fact, quantify health, that we are transitioning from a world of storytelling to a quantified framework.

So one thing I've learned over the past couple years, I've been measuring my speed of aging. So inside of each one of you is a clock that tells you how fast or how slow you're aging. If you're aging at a 1, that means one year of time passes, and you age one year. If you are 1.2, you're aging faster than time is passing. And if you're less than, you're slower than time is passing.

So in consistent with trying to make this a global sport, I created the Rejuvenation Olympics, where people all around the world are competing to see who has the lowest speed of aging score. I'm currently number one in the world, 0.55, three test score. This means that for every year that passes, I age roughly six months. So you can, in fact, meaningfully slow down your speed of aging through various things I'm going to talk to you about today.

So you probably hear a lot of things about health. It probably seems all very confusing, and people disagree with everyone about everything. So what do you do? I'm gonna help you understand there's one marker in particular that will help you achieve the majority of the health benefits, lowering your resting heart rate before bed, okay? So we're gonna spend about five minutes on this. Everyone put your phones down and let's focus on this, yeah? Okay.

So my credentials in doing this is I scored eight months of perfect sleep. A 100% sleep score for eight months. I wanted to demonstrate you can, in fact, master the practice of sleep. And in doing this, I realized in all my practices that the most important marker determining whether or not I was going to have restful sleep was my resting heart rate before bed.

So tonight, when you go to bed, lay down on your pillow, take a few deep breaths. If you have a wearable, pull it up and see your heart rate in real time. If not, just take your pulse for six seconds and then multiply that by 10. Let's say your resting heart rate is 6.5. Your goal over the next month is to lower your resting heart rate by 10% to 54. And the way you're going to do this is these things right here.

So one of the biggest things that I've seen is the timing of my final meal of the day is perhaps the greatest influencer of my resting heart rate. So my final meal of the day now is around noon. I go to bed at 8:30. You don't need to do that if you simply start with four hours before your bedtime. So if your bedtime is 10 p.m., finish eating your final meal for the day by 6 p.m. No snacks and no food after that. You'll notice that when you do that, your resting heart rate goes down because your body is almost finished digesting food, and it leaves metabolic capacity of your body to then sleep.

You see here in these other things, alcohol, for example, increases your resting heart rate. So if you say, again, your bedtime is 10 p.m., when 9 p.m. arrives, screens off, and you're in a wind-down mode, calming your body and mind from the day's stress. So you know this from experience. When that moment of the day comes, you're stressed, you're tired, you're mad, you're anxious, you have all kinds of ambitious thoughts. That rumination will drive your heart rate up, which will lessen your sleep quality.

Your sleep quality goes down. And when your sleep quality goes down, your mood goes down. Your want of bad foods goes up. So sleep triggers this cascade where you're not going to exercise, you're going to eat bad foods, you're going to put on weight, you're going to have mood imbalances. Sleep is the number one best performance enhancing drug in the world, of your sleep quality.

So to summarize health in one statement, if you lower your resting heart rate before bed, you will achieve the majority of the health benefits through all the good things you can do in life. It leads to high quality sleep, which then leads to more positive behavior. So I would encourage you to make that your single practice. It's also your accountability partner. So if before bed, you are looking at that pint of ice cream or the bag of chips, you realize that's going to drive up your heart rate, and you're not going to do it.

These are the things I would suggest. It is very counterintuitive in our culture today. I would suggest each one of you build your life around sleep. This is what I've learned over five years of doing this, of having the best biomarkers of anybody in the world. Building your life around sleep is the best thing you can do to make more money in Bitcoin. You'll make more money in Bitcoin if you get sleep. And I know many of you don't believe that. You will. You will make better decisions.

This is true for men and women. Did you know that nighttime erections, men and women, is one of the most important biomarkers for your health? It is psychological, cardiovascular, and your fitness. So as you age, this is again true for men and women, nighttime erections go down. It is a function of aging damage.

So when I first started talking about this as a poor marketer, I had several friends, many of which are in Web3, who were saying, Bryan, I have no nighttime erections. That's what happens. When you don't get sleep, your body shuts down critical functions, including your sexual function. It also eliminates, you have NK cells in your body. These are cells that go out and survey for cancer. When you don't get high quality sleep, your body lowers searching for cancer by 73%. Your body stops looking for cancer.

Also, when you get four hours of sleep at night, there's a response in your brain of an inflammatory protein that is equal to a traumatic brain injury. So I want to impress upon you that sleep is not just a productive thing that helps you make better decisions and have a stable mood. It also, if you don't get it, your body literally shuts down really important functions.

So here, I'm just going to give you guys this. Pull out your phones. Grab this QR code. This is what I eat on an ongoing basis. So the thing that distinguishes my endeavor is we have combed through the scientific evidence. We've used the philosophy to say every calorie has to fight for its life. Every single molecule that gets in my body. And we said, what are the superfoods among superfoods? This is a great representation.

So as you try to, number one is lower your resting heart rate. Two is have good nutrition and eat from the sky.

Finally, I think we all know this, the most consequential thing happening in the world right now, of course, outside of Bitcoin, that's obvious. Second to Bitcoin is AI. AI is progressing at a speed that is unfathomable to our current minds. It is changing things beyond our ability to understand.

As it does this, a new game. And whereas right now our games are primarily locked in on status and prestige, not wealth and power, the new game as a species is going to become how we stay alive individually, trying to answer the fundamental question, what does a species do when you're giving birth to superintelligence? Don't die individually. Don't kill each other. Don't destroy the planet. Align AI with don't die.

Don't Die is attempting to be the world's next Christianity, Islam. It is meant to say, as a species, this is what we do. This moment can't be overstated in consequence. For centuries, for millennia before, you would say, death is inevitable. Therefore, YOLO. I'm going to raise an army and conquer territories. I'm going to go to war. Be immortal in my professional accomplishments. I'm going to acquire wealth. I'm going to have children.

This is the first moment in the history of the human race where somebody can say with a straight face, we may be the first generation who will not die. And that requires a fundamental revolution. Don't Die is the single thing that every human on this planet can agree to.

So in summary, I hope you guys are open to the idea that this moment is fundamentally different than any previous moment, that you practice these principles of Don't Die starting with your resting heart rate. You'll be more successful, you'll be happier, you'll be a better family member, better partner, better at your work if you prioritize sleep, that I think is unfathomable in current minds.

Thank you, be well.

🩺 Disclaimer

The content on I Won’t Die is for informational and educational purposes only. It is not a substitute for professional medical advice, diagnosis, or treatment. Always consult a qualified healthcare provider with any health concerns.

🚀 Get Started with Blueprint

Start optimizing your health today with $25 off your first order! Use our referral code to begin your Blueprint journey and take control of your longevity.

🏋️‍♂️ Track Your Sleep, Workouts & Recovery

Boost your performance and recovery with Whoop. Join with my referral link to get a free WHOOP 5.0 and one month free!

📲 Download the I Won’t Die App

Stay ahead with the latest news, updates, and insights. Download the I Won’t Die app now on the Apple App Store and Google Play!

📩 Contact Us

Have tips, photos, or questions? Want to collaborate? Reach out at [email protected] — we’d love to hear from you!

🔗 Stay Connected

Follow us on Don't Die, Facebook, X, Instagram, YouTube, and LinkedIn for Blueprint longevity and Bryan Johnson updates.

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