Tech entrepreneur and biohacker Bryan Johnson has revealed that he has been diagnosed with autoimmune gastritis, a chronic autoimmune disorder that damages the stomach lining and can lead to iron deficiency, vitamin B12 deficiency, and an increased risk of certain stomach cancers.
Johnson, 48, shared the diagnosis in a post on social media, describing the condition as one in which his "stomach is eating itself." He said he plans to continue researching ways to manage the disease, despite the fact that there is currently no cure.
