Zoltan

[Afshine Emrani MD FACC @afshineemrani]

Two days ago, something happened that most of the world still doesn't know about.

A human being received the first therapy in history designed to reverse cellular aging inside their body. Not slow it down. Not manage the symptoms. Actually reset the biological clock at the cellular level.

@lifebiosciences — co-founded by Harvard geneticist @davidasinclair — announced on June 9 that the first patient was dosed in their Phase 1 clinical trial of ER-100.

Let me explain what this actually is, because the implications extend far beyond the eye they're treating.
Your DNA is mostly intact throughout your life. Think of it as hardware. What degrades is the epigenome — the layer of chemical instructions that tells your genes what to do and when. Over decades, those instructions get corrupted. Genes that should be active go silent. Genes that should be silent activate. Cells lose their identity and function. We call this aging.

ER-100 uses three transcription factors — OCT4, SOX2, and KLF4 — to perform a partial epigenetic reset. These are the same factors that can reprogram any adult cell back into a stem cell. But they're not going that far. They're doing just enough to make damaged cells function like younger versions of themselves — without losing their identity.

The delivery is elegant. A one-time injection into the eye. An oral pill acts as an on/off switch — doctors control exactly how long the reprogramming lasts. If anything goes wrong, they turn it off.

This didn't come from nowhere.

In 2020, Sinclair's team restored vision in old mice and mice with glaucoma using this approach. The paper made the cover of Nature. They moved to monkeys with optic nerve damage — and successfully restored function with no major safety issues. Now, two days ago: the first human.

The trial is targeting glaucoma and NAION — a sudden "stroke of the eye" that causes devastating vision loss. Current treatments for both can only slow progression. Nothing reverses the damage. This therapy aims to regenerate damaged optic nerve cells by making them young again.

As a cardiologist, here's why this keeps me up at night — in the best possible way.

The eye is a safe, measurable starting point. But the platform technology isn't limited to the eye. If partial epigenetic reprogramming works safely in optic nerve cells, the same approach could theoretically be adapted for the brain, the spinal cord, the heart, the liver, the kidneys — any organ where cells lose function with age.

We're not testing whether we can treat one disease. We're testing whether we can treat aging itself as a reversible biological process.

For my entire career, cardiology has been magnificent at managing the downstream consequences of aging: high blood pressure, plaque buildup, heart failure, arrhythmias, stiffened arteries. We prescribe statins, antihypertensives, anticoagulants, and devices to manage what time does to the cardiovascular system. We're getting better every year.

But what if the cells themselves could be reset? What if the cardiac muscle cells that lose contractile function with age could be epigenetically restored? What if the endothelial cells lining sixty thousand miles of blood vessels could be made to behave like they did decades earlier?

That's not in a trial yet. But the foundational technology just entered a human body for the first time. And the companies racing in this space — Life Biosciences, Altos Labs, NewLimit — are backed by billions of dollars and some of the best scientists alive.

Essential caveats — because I'm a physician, not a hype man.

This is Phase 1. Roughly 18 patients. The primary goal is safety: does this cause harm? Is it tolerable? Efficacy data will come later. Many promising therapies have failed in the gap between animal models and human reality. Gene therapy carries risks — immune reactions, off-target effects, unintended cellular behavior. The oral on/off switch is a critical safety feature, but this is still the earliest possible stage of testing.

No one is reversing aging tomorrow. No one is living to 200 next year.

But a line was crossed two days ago that cannot be uncrossed.

For the first time in human history, someone received a therapy specifically designed to make damaged cells young again inside a living person. From impossible in theory to proven in mice to tested in monkeys to injected into a human being — in six years.

I've spent twenty years treating the consequences of aging. I've held hearts that were failing because time had degraded the cells beyond recovery. I've watched patients lose vision, cognition, mobility, and independence — and told them there was nothing I could do to reverse what time had taken.

This week, the conversation began to change.

Gene editing to permanently lower cholesterol. Personalized mRNA vaccines to hunt cancer. GLP-1 drugs rewiring metabolism, reducing depression, and cutting cancer metastasis. And now — partial cellular reprogramming to reverse aging at the epigenetic level.
I said months ago on this platform that our children may live past 100 — not frail, but strong and vibrant.

The evidence keeps building that this isn't optimism.
It's a timeline.

[HolisticHappiness | Self-Mastery® @HoliHappiness]

This is the perfect plan for a longer, healthier life..

-Thread-

[TBPN @tbpn]

"Every male 40 and older should probably be taking somewhere between 2.5 and 5 milligrams of tadalafil." - @hubermanlab

Jordi: What do you think the best athletes in the world are doing this Olympics?

Huberman: "People are taking vasodilators. You know, Viagra and tadalafil, which commonly goes by Cialis."

"Tadalafil is a vasodilator. It lowers blood pressure, and people know of it as Cialis for erectile dysfunction. It was originally developed as a drug to improve prostate health."

"The basic takeaway is that most every male 40 and older should probably be taking somewhere between 2.5 and 5 milligrams of tadalafil—not necessarily for erectile function, although it will augment that as well—but to lower blood pressure and to improve vasodilation for the brain and the prostate."

"And I'm not saying this as a biohacker or a podcaster. Our head of male sexual health from Stanford, Mike Eisenberg, MD, PhD. He is best in class in terms of male sexual health endocrinology. That's his recommendation."

[Cyrus @crkashani]

As an experienced climber with multiple Himalayan expeditions, I believe the root of these issues lies in the corruption and incompetence of the Nepalese government. For instance, they charge $11,000 per climber for an Everest summit permit (increasing to $15,000 starting this September) to supposedly support waste collection and removal for climbing groups. However, in reality, they do little to nothing to enforce this, and the same applies to other summits with varying permit fees.

[Zoltan @StadlerZ]

@davidasinclair @lifebiosciences

[Zoltan @StadlerZ]

@CharlieGalvinTX @davidasinclair @lifebiosciences

[Karl Mehta @karlmehta]

Cold exposure is one of the most ignored natural remedies on Earth.

Used right, it melts fat, reverses your age, and reduces inflammation in the body—yet no one talks about it.

So, I started researching its healing benefits...

What I discovered will blow your mind: 🧵

[𝗪𝗲𝗹𝗹𝗻𝗲𝘀𝘀 𝗖𝗵𝗲𝗺𝗶𝘀𝘁 @GodswillChemist]

Young people aren’t dying from protein deficiencies
They’re dying from fiber deficiencies

Fiber is key to:
• Protecting against colon cancer
• Fighting heart disease
• Boosting fat loss

Yet 95% of people don’t get enough.

Here are high-fiber foods you need:🧵

1. Chai seeds

[The Night Warrior @WarriorNight007]

@MattWallace888 Remember Hollywood elites' nervous laughter at the Oscars when Ricky Gervais joked about the Epstein list?

Now we all know why. This is glorious.

[Ben Smith @bensmithlive]

Salt flush is the most underrated detox method on the planet.

It flushes all 7+ meters of your intestines, eliminating toxins that even colonics can't reach.

I did it recently, and the results were remarkable.

My exact step-by-step salt flush protocol: 🧵

[Novak Djokovic @DjokerNole]

Thanks for the battle, @camilougo. Hola Miami! Idemooo 😎

[Alexander Zoltan @AmazingZoltan]

Mark Carney Is Going Down—And He's Taking ESG With Him

Days away from a Canadian federal election and rather than knocking on doors, the big-L Liberals and socialists alike are drawing dicks and swastikas on Tesla dealerships and cyber trucks—here's why that says a lot.

A 🧵.

[Kirk Lubimov @KirkLubimov]

Holly...

Did you know that Canada's violent crime per capita is over 3.5 times that of the US??

[Grace Price @travelingenes]

Yesterday I testified in Texas for a bill to remove sugary sodas and candy from SNAP eligible items.

You’ll never guess who I was fighting against…

The American Heart Association.

This is a prime example of the perverse incentives within our most trusted health institutions.

Here’s the full story:

[IronSage @IronSage_]

"Fasting is the first principle of medicine." - Rumi

You've probably eaten food everyday of your life.

Give your poor body a break.

HERES HOW TO FAST AND WHY ITS SO BENEFICIAL:

[Impakt CEO (Winston) - Get paid while getting fit. @winstonzin]

This is the most shredded man alive.

He's 56 and has a body fat of 4%––one of the lowest in bodybuilding history.

His secret? A superhuman routine that keeps him ripped without losing muscle.

Let's break it down:

(A day in the life of Helmut Strebl🧵)

[MadMuscles @MadmusclesPlans]

Transform your body, transform your life! 💪🔥 Start your weight loss journey now!

[Alex @alex_avoigt]

The best car I ever drove!
The best car I ever bought!
The best car I ever owned!

Nothing changes that Tesla manufactures and sells the best cars in the world. $tsla

[The Great Randomizer @RandomizerGreat]

In 1968, Stanford psychologists put a sweet in front of hundreds of 4-year-olds.

"You can eat it now. Or wait 15 minutes and get two."

50 years later, this simple test predicted who succeeded in life with shocking accuracy.

Here's the truth behind the famous test:🧵

[MadMuscles @MadmusclesPlans]

Transform your body, transform your life! 💪🔥 Start your weight loss journey now!