Millionaire biohacker Bryan Johnson, who has publicly pursued extreme health interventions aimed at reducing his biological age, says he has been diagnosed with an incurable autoimmune disease. Multiple outlets report that Johnson, known for his long-running effort to “defeat death,” has shared the diagnosis as part of his broader health and longevity project. The reports also describe Johnson’s previous unconventional approach, including the use of blood transfusions from his teenage son, which he has said was part of his quest for improved health and longevity. While the coverage is consistent that the autoimmune condition is incurable, the articles focus on Johnson’s disclosure rather than detailing the specific medical name of the disease or treatment outcomes. Across sources, Johnson’s diagnosis is presented as a new development that contrasts with his goal of extending healthspan. The reporting does not indicate a cure for the condition, but it frames the news as an update to his personal longevity efforts.