Bryan Johnson's Health Revelation
Bryan Johnson, the 48-year-old tech entrepreneur and life extension advocate known for his extreme health optimization regimen, has revealed that he has been diagnosed with Autoimmune Gastritis (AIG), an incurable autoimmune disease. Johnson shared the news on X (formerly Twitter), stating that he only discovered the condition in May and does not know how long he has had it. AIG causes the immune system to attack the stomach lining, leading to deficiencies in vitamin B12 and iron, which can result in anemia.
What Is Autoimmune Gastritis?
Autoimmune Gastritis is a chronic condition where the body's immune system mistakenly attacks the cells in the stomach lining that produce acid and intrinsic factor, a protein needed to absorb vitamin B12. Over time, this can lead to pernicious anemia, neurological issues, and an increased risk of stomach cancer. Johnson noted that an estimated 2–5% of the population may have AIG, but many cases go undiagnosed because symptoms can be subtle or mistaken for other conditions.
Johnson's Personal History and Blame Factors
In his post, Johnson attributed his autoimmune disease to his early lifestyle choices and the stress of becoming a young father. He wrote, "As a kid, I ate sugar cereal, drank sugary soda, and gobbled down fast food. I had a few healthy years in my early 20s but then became a young father of three and began building a business. Juggling that stress and grind, I let my health slip and gained 40 lbs. Within a few years I’d fallen into a deep, chronic depression. Somewhere in that timeline, my body began developing an autoimmune process affecting my thyroid and then my stomach lining." This suggests that Johnson believes his autoimmune condition may have been triggered or exacerbated by diet, stress, and mental health struggles.
Experimental Approaches and Call for Help
Despite the incurable nature of AIG, Johnson is determined to find a solution. He announced that he plans to pursue "experimental approaches" and has asked anyone working on the disease to reach out to him. This aligns with his well-known philosophy of pushing the boundaries of health and longevity through unconventional methods. Johnson has spent millions on his quest to reverse aging and extend his lifespan, including a strict regimen of supplements, medical procedures, and lifestyle modifications.
Public Reaction and Criticism
Johnson's announcement has drawn mixed reactions. While some express sympathy, others have criticized his extreme health practices, which include tracking his son's erections and other unusual metrics. Johnson addressed the criticism, writing, "It’s worth noting that many of you give me a hard time, inviting me to ‘live life’ and engage in self-destructive behaviors like a ‘normal person’. I’m cool with the playful ribbing. Also, had I not taken care of my health during the past five years, my situation could potentially be very serious." He seems to view his diagnosis as validation of his meticulous approach to health, arguing that his vigilance may have prevented the disease from becoming more severe.
Background on Bryan Johnson
Johnson is best known for founding Braintree, which acquired Venmo in 2012 and was later sold to PayPal for $800 million. He now runs Blueprint, a company that sells dietary supplements, extra virgin olive oil, and other products aimed at promoting longevity. In 2024, he was the subject of a Netflix documentary titled Don't Die: The Man Who Wants to Live Forever, which chronicles his obsessive pursuit of immortality. His health regimen includes taking dozens of pills daily, undergoing regular medical tests, and following a strict diet and exercise plan.
Implications for the Longevity Movement
Johnson's diagnosis raises questions about the limits of even the most rigorous health optimization. Despite his extreme measures, he has developed a chronic autoimmune condition. This underscores the complexity of human health and the fact that lifestyle factors alone may not prevent all diseases. However, Johnson remains optimistic, viewing his condition as another challenge to be solved through innovation and experimentation. His willingness to share his journey publicly may inspire others with autoimmune diseases to seek early diagnosis and explore new treatments.
Conclusion
Bryan Johnson's announcement of his Autoimmune Gastritis diagnosis adds a new chapter to his controversial quest for longevity. While the disease is incurable, Johnson's determination to find experimental treatments reflects his unwavering commitment to pushing the boundaries of human health. Whether his approach will yield breakthroughs or further criticism remains to be seen, but his story continues to captivate and divide audiences worldwide.
This article is based on reporting by Gizmodo. Read the original article.
Originally published on gizmodo.com








