Bryan Johnson, often searched as bryan johnson, is an entrepreneur who founded Braintree, Kernel and the OS Fund and who now leads an anti-aging program called Project Blueprint.
Johnson built Braintree in 2007 and oversaw the company as it acquired Venmo for $26.2 million in 2012, before Braintree was sold to PayPal in 2013 for $800 million, a sale that Time reported left Johnson with more than $300 million.
He launched the OS Fund in October 2014 with $100 million of his own capital and in 2016 started Kernel, initially with a $100 million personal investment, later refocusing the company on helmet-like hardware to measure electrical and hemodynamic brain signals.
Kernel demonstrated those devices in 2020, and by July that year the company had raised $53 million from outside investors following Johnson's own $54 million in contributions, according to company reporting.
Controversies Regimen and Legal Questions
Johnson announced Project Blueprint in October 2021, describing an intensive, data-driven regimen to slow aging, and he underwent six monthly one-liter plasma transfusions, using his son as a donor for one transfusion, but later said he saw no benefit and would not repeat them.
The FDA has warned that such plasma transfusions lack proven benefit and could be harmful, and a New York Times investigation reported Johnson used confidentiality agreements to limit employees speaking publicly about him and his companies, a practice some former workers have challenged.
In a long interview with Wired, Johnson described a highly regimented daily routine built around sleep optimization, early waking, light exposure, scalp treatments, exercise, red light therapy, hyperbaric oxygen therapy, saunas and a midday eating cutoff.
Wired reported he frames his work as more than health, describing a "Don't Die" philosophy linked to artificial intelligence and a Bryan AI that has digested his public statements, while he also said he is considering shutting or selling his Blueprint business and that the company runs about break-even.
Wikipedia records that documents released by the US Department of Justice in February 2026 show Johnson had email contact and meetings with Jeffrey Epstein in 2017 about Kernel; Johnson confirmed the meeting and said he cut off contact after one video conference.
