"First time in history": Bryan Johnson has finally found the secret to immortality

The promise of living forever has haunted human imagination for thousands of years. From ancient myths to alchemy, the idea has always returned, usually cloaked in hope, fear, and ambition. Now, Silicon Valley biohacker Bryan Johnson believes the age-old pursuit of immortality has finally entered a realistic phase, driven not by myth or magic, but by artificial intelligence and biological engineering.



Johnson, 48, claims he will “achieve immortality” within the next 15 years. ‘I remain the same biological age’



Writing on X this week, Johnson said that despite the passage of time, his body is no longer aging in the conventional sense.



“With each year that passes, I remain the same biological age,” he wrote. He went further, claiming a historic turning point for humanity:

“For the first time in the history of life on Earth, in just the past 24 months, the window has opened for a conscious being to realistically strive” to live forever.



Johnson has set 2039 as his target year—when he will be chronologically 62 years old.

Why 2039? Johnson says AI is the key

Johnson admits he does not yet know exactly how immortality will be achieved. But he believes artificial intelligence will be central to the breakthrough.



“We currently do not know how 2039 immortality will be achieved… but we know immortality is possible because nature has already solved it,” he wrote. “This isn’t a physics problem like trying to travel faster than the speed of light, it’s a biological engineering problem that evolution has cracked multiple times.”



According to Johnson, AI is no longer just a research aid. “2039 is a reasonable target because of the accelerated, AI-driven rate of innovation. AI is morphing from assistant to scientist. It is powering current researchers with previously unimagined capabilities to enhance discovery and development.”



He added: “That, coupled with enhanced biomarker measurement, creates a closed-loop system of improvement that will speed things up dramatically.”

A $2 million-a-year experiment on his own body

Johnson’s claims come after years of controversy surrounding his extreme anti-aging regimen, which reportedly costs around $2 million per year. His methods have included receiving blood transfusions from his teenage son and closely tracking physiological markers—down to measuring nocturnal erections.



Johnson says that after six years of strict protocols, his body “largely operates at elite 18-year-old levels,” including heart health, fertility, and hormone function. However, he acknowledges limits. He has said his brain is “anatomically age 42” and that he has mild to moderate hearing loss in his left ear.

Measuring the biological age of every organ

Johnson claims his progress comes from obsessively tracking internal aging. “I lowered my biological age by measuring ‘the biological age of every organ,’” he said. “We referenced the best scientific evidence on how to slow aging and rejuvenate. We methodically completed these protocols and measured again. Rinse and repeat.”



He added: “We could do so much more and faster if we had better measurement and better therapies. Both of which are cooking all over the world right now.”



To support his theory, Johnson points to organisms that appear biologically ageless. He cited Turritopsis dohrnii, often called the “immortal jellyfish,” which can revert its cells to a youthful state, as well as freshwater hydra that continuously regenerate their cells. Johnson argues these species demonstrate that aging is not inevitable—but a solvable biological process.

Organ clones ‘built in a dish’

Johnson has also claimed he is creating “thousands of Bryan Johnson organ clones built in a dish” to test drugs and therapies on how his body ages. He has not publicly detailed how this process works or how far along it is.



Still, he describes the goal in near-spiritual terms. “I think this is the coolest goal imaginable. I find it hard to believe that of all the people who’ve lived, it’s us who get the opportunity to have this moment,” he said.



The pursuit of immortality is far from new. Ancient Mesopotamian literature tells the story of Epic of Gilgamesh, in which the hero attempts to escape death. Ancient Egyptians drank potions to preserve their bodies. In 16th-century France, Diane de Poitiers, mistress of King Henry II, consumed gold after alchemists claimed it could extend life. In 1492, Pope Innocent VIII reportedly received blood from three young men in an early attempt at transfusion to survive after a stroke.

How long can humans really live?

The longest confirmed human lifespan belongs to Jeanne Calment, who lived to 122 years and 164 days. She remains the only documented person to surpass 120.



Meanwhile, overall life expectancy in the U.S. has recently begun to rise again after years of decline. According to data from the Centers for Disease Control and Prevention, the average American life expectancy is 76 years—about 80 for women and 75 for men.



Some scientists believe dramatic extensions are possible. Stephen Austad, a biologist at the University of Alabama at Birmingham, recently said he believes the first person to live to 150 is likely already alive. ‘We are a suicidal species,’ Johnson says



Johnson frames his immortality goal as a rejection of how modern society treats life itself.



“Right now, we are a suicidal species. We do all kinds of really primitive s***,” he wrote on X. “We unnecessarily kill ourselves with what we eat and how we live our lives.”



He continued: “Companies make profits from killing other people with their products. We trash the only home we have. We celebrate these things as virtue. It’s really f***** up and backward.” According to Johnson, the 2039 goal is symbolic as much as scientific.



“The 2039 goal points us in the right direction. To say yes to life and no to death. Defiance even.” No human has ever achieved immortality, and many scientists remain deeply skeptical of the idea. But Johnson insists the moment is unique.



“I pray that we have the courage to appreciate the sacredness of our existence,” he wrote. “I pray that we will be brave enough to defend her amidst the onslaught of all the forces that would try to end her.”