Wednesday, 15 July 2026

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Bryan Johnson, the biohacking billionaire, diagnosed with incurable disease

Bryan Johnson, the biohacking millionaire, has been diagnosed with autoimmune gastritis, an incurable disease attacking his stomach.

Beatriz Lorenzo AguirreBeatriz Lorenzo Aguirre· · 3 min read

Tech entrepreneur Bryan Johnson, known for spending millions to reverse his biological age, has been diagnosed with autoimmune gastritis, an incurable ailment. His immune system attacks his own stomach.

Bryan Johnson, the controversial American millionaire who has invested millions of dollars in his biohacking project to avoid aging, has received a harsh medical setback. Tests have confirmed that he suffers from autoimmune gastritis, a chronic and incurable disease in which his own immune system destroys the cells in his stomach.

The 47-year-old founder of Kernel revealed the diagnosis on his social media. "My body is attacking itself," he wrote, visibly affected. The news contradicts his narrative of total control over his health, after years of strict diets, plasma transfusions, and dozens of supplements.

A disease that challenges his immortality plan

Autoimmune gastritis is a rare condition that causes chronic inflammation of the stomach. Over time, it can lead to vitamin B12 deficiency, pernicious anemia, and an increased risk of gastric cancer. There is no cure, although its symptoms can be managed with medication and dietary changes.

Johnson, who claims to have reduced his biological age by more than five years, now faces an ailment that no anti-aging treatment can reverse. "It’s ironic that someone trying to hack death has to deal with a disease that attacks from within," sources close to the entrepreneur point out.

The millionaire has already announced plans to "solve" the problem with artificial intelligence. His company, Blueprint, dedicated to longevity, is working on an AI-based early diagnosis system. However, experts warn that AI cannot cure an established autoimmune disease.

The dark side of extreme biohacking

Johnson's case reignites the debate about the limits of biohacking. Some doctors suggest that his lifestyle, involving supplements and experimental drugs, could have altered his immune system. "We don’t know if autoimmune gastritis is a consequence of his practices, but it’s a plausible hypothesis," explains a consulted gastroenterologist.

Johnson, who undergoes hundreds of medical tests weekly, is not giving up. "I will keep fighting. Science will find a solution," he stated. In the meantime, he will have to adapt his strict routine: his diet, based on smoothies and vegetables, will need to be revised to avoid irritating his stomach.

For followers of the extreme longevity movement, the diagnosis is a cold shower. "If someone with all the resources cannot avoid a disease, what hope do the rest of us have?" they wonder in specialised forums. The answer, for now, is none: autoimmune gastritis does not care about fortunes or iron will.

Johnson's next step will be to undergo treatment with immunosuppressants to halt the attack from his immune system. "It’s not what I planned, but it’s what I have to do," he concluded. The paradox of someone who wanted to live forever and now must settle for living with a chronic disease.

Beatriz Lorenzo Aguirre

Written by

Beatriz Lorenzo Aguirre

Redactora

Periodismo económico por la Carlos III y lectora compulsiva de cuentas anuales. Cafés a destajo, alergia a las notas de prensa vacías y memoria para los ERE; en Iber Empresa escribe de empresas y empleo.