News · 6 July 2026
Biohacker Bryan Johnson reveals incurable stomach disease from old habits
Photo: M Robertson (CC BY 4.0)
Bryan Johnson, a tech entrepreneur known for trying to reverse ageing, has been diagnosed with autoimmune gastritis (AIG), where his immune system attacks his stomach lining. He said last week that his stomach is "eating itself" and that AIG causes irreversible damage, including anaemia and a higher cancer risk. Johnson claims his childhood habits, like eating sugary cereal and fast food, contributed to this and other autoimmune diseases.
Reported by Nine.com.au · How we write briefs