Biohacker Bryan Johnson reveals incurable autoimmune gastritis as he pushes on with 'defeat death' quest

Renowned biohacker Bryan Johnson, 48, disclosed on social media that he has incurable autoimmune gastritis—an immune-driven attack on his stomach lining—described as his stomach 'eating itself.' He plans to monitor ferritin and iron levels, pursue repeated biopsies, and explore treatments using AI and multiomics, insisting that nothing is truly incurable if pursued with today’s tech. The diagnosis comes as he maintains an extreme health regimen and aging-focused lifestyle as part of his ongoing quest to defeat death.