ALBAWABA - Famous 'Anti-ageing biohacker' and influencer Bryan Johnson recently made headlines after revealing that he has an autoimmune disease called autoimmune gastritis (AIG). Gastritis is an autoimmune disease that attacks the stomach lining, typically caused among individuals who frequently use NSAID painkillers or drink excessive amounts of alcohol. However, the most common cause is an infection with the bacterium Helicobacter pylori (H. pylori). Brayn Johnson took to X (formerly ...