Bryan Johnson Announces iPSC ‘Clone’ of Himself for Organ Research

American biohacker and longevity entrepreneur Bryan Johnson, 48, posted on X that he has created a “clone” of himself as a newborn using induced pluripotent stem cell (iPSC) technology. The process reprograms his own blood‑derived cells to behave like embryonic stem cells, and the resulting cellular “baby” currently lives in a petri dish. Johnson says the clone could serve as his own blood donor, a platform to test novel therapies, a source for growing transplantable organs, and a means to develop new treatments and inject young cells.

He also disclosed a recent diagnosis of autoimmune gastritis, an incurable condition in which his immune system attacks stomach lining cells. Johnson framed the diagnosis as a catalyst for applying AI, multi‑omics and custom DNA tools to solve the disease. The announcement sparked widespread debate, with many praising the potential medical advances while others condemned the ethical implications, labeling the experiment “evil” and questioning the rights of the cloned cells. The iPSC technique traces back to Nobel laureate Shinya Yamanaka’s work in the early 2000s.