Johnson revealed his diagnosis on Instagram. He wrote that 2-5% of people have autoimmune gastritis, though the number may be higher as it can be hard to...

In a lengthy social media post, Johnson revealed how difficult it was to obtain the diagnosis and pledged to try finding a cure for the disease. 'My stomach is eating itself,' he…

Bryan Johnson, the millionaire known for his anti-ageing pursuits, has revealed a battle with autoimmune gastritis, a condition where his immune system attacks his stomach.…