‘Biohacker’ says he has autoimmune disease
- Posted on July 8, 2026
- By CNN
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- 1 min read
‘Biohacker’ says he has autoimmune disease
Bryan Johnson, a former tech executive who’s invested millions of dollars attempting to slow aging, announced on social media he’s been diagnosed with autoimmune gastritis. The condition occurs when the immune system attacks the cells of the stomach lining.