Bryan Johnson

Bryan Johnson is an American entrepreneur and investor known for founding the payments company Braintree and, in later years, for an intensive personal longevity and anti-aging program that brought him widespread public attention.

Early life

Bryan Johnson was born on August 22, 1977, in Provo, Utah, and was raised in a Mormon household. As a young man he served a mission for the Church of Jesus Christ of Latter-day Saints in Ecuador, an experience he has described as influential. He pursued business studies, earning an MBA, and developed an early ambition to build companies that could generate resources for larger projects.

Career

Johnson founded Braintree, a payments technology company, in the late 2000s. Braintree acquired the mobile payments service Venmo and was itself later acquired by PayPal in a major transaction, a deal that established Johnson's reputation and wealth in the technology industry.

After exiting Braintree, Johnson turned to other ventures. He launched OS Fund, an investment firm focused on companies working in areas such as biotechnology, genomics, synthetic biology and other science-driven fields, reflecting an interest in funding research with long-term scientific ambitions. He also founded Kernel, a company developing technology to measure and study brain activity, with the aim of making neural measurement more accessible. These ventures established his reputation as an entrepreneur willing to invest heavily in speculative, science-focused projects.

Recent work

In the 2020s Johnson became widely known for a self-experimentation program centered on slowing aging, often referred to by the name "Blueprint" and associated with the slogan "Don't Die." The project involves a highly regimented regimen of diet, exercise, sleep, supplements and frequent medical measurement, with Johnson publicizing extensive personal health data and protocols. The effort generated substantial media coverage and debate, with supporters viewing it as an ambitious experiment in preventive health and longevity science and critics questioning aspects of its methodology and claims. Johnson has used the attention to promote related products and protocols and to advocate broadly for a focus on health span and the science of aging, positioning longevity as a central theme of his public work. He has documented much of his regimen publicly and built a substantial online following, becoming one of the most widely recognized public figures associated with the modern longevity movement. His approach has prompted broader cultural conversations about preventive medicine, biomarkers and how individuals might use data to manage their own health, even as scientists have urged caution about extrapolating from a single person's self-experimentation.