A woman whose vagina was recently ranked among the world’s top 1% is now spending millions on an extreme human experiment that could change what scientists know about women’s health.
For years, entrepreneur Bryan Johnson has drawn attention for spending enormous sums of money in pursuit of slowing aging and optimizing his health.
From tracking hundreds of biomarkers to documenting some of the most personal aspects of his physical condition, the biohacker has built a reputation for turning his own body into a living science project.
Now, the spotlight has shifted to his girlfriend and Blueprint co-founder, Kate Tolo.
vaginal microbiome analysis
The unusual conversation started after Johnson shared an intimate post with his 1.2 million followers on X.
“Just gave Kate oral sex. Goodnight everyone,” he shared two minutes before revealing the results of what he described as a vaginal microbiome analysis.
“This is her vaginal microbiome report. 100/100 score,” Johnson continued in a second message, explaining why the results stood out.
“Her sample is dominated by the single most protective bacterial species a vagina can host (Lactobacillus crispatus).”
“Only about 25-30% of reproductive age women globally are L. crispatus-dominant, and ‘dominant’ usually means above 50%. Kate is at 98.7%.”
The post quickly sparked discussion online, not only because of the personal nature of the information but also because it served as an introduction to a much larger project Johnson says Tolo is about to undertake.
‘Most measured female in history’
While Johnson has spent years subjecting himself to extensive monitoring and experimental health protocols, Tolo is now preparing for a similar journey.
According to Johnson, she will spend three months establishing a detailed health baseline before any interventions are introduced.
Calling her the “female Bryan Johnson,” he wrote: “She will become the most measured female in history.”
The process is expected to be far more complicated than similar testing in men.
“To start, she will spend 3 months mapping her baseline. Men, in contrast, can get their baseline done in one or two weeks,” Johnson explained.
During that period, Tolo will follow a highly structured daily routine under the care of a full-time medical team. Researchers will also closely monitor her menstrual cycle and collect extensive biological data.
Johnson compared the upcoming project to his own experience.
“For context on the extensiveness of measurement, during the past 5 years, we’ve collected 1.5 billion data points on my body. I suspect Kate will exceed that given technology has improved since I started.”
“The goal is to create a repeatable waveform of hundreds of life-critical biomarkers. Once the baseline is acquired, she will begin interventions.”
Focus turns to women’s health
Despite the attention surrounding Tolo’s microbiome results, the larger goal of the project is tied to women’s health.
Tolo has spoken publicly about living with “suspected endometriosis,” a chronic condition that affects millions of women worldwide and currently has no known cure.
According to the World Health Organization (WHO), endometriosis affects roughly 10% of women of reproductive age, representing around 190 million people globally.
Researchers hope that collecting extensive biological data could help improve understanding of the condition and potentially provide insights into issues such as hormonal health, premenstrual syndrome, and menopause.
A costly and demanding commitment
While some critics have mocked Johnson’s highly public health experiments over the years, he described Tolo’s participation as a major personal sacrifice.
“In many ways, this is a sacrifice for her,” Johnson wrote of the experiment with “$2 million of spend per year.”
“She is a creative person, going from a life of freedom and spontaneity to a rigid protocol
“It’s pretty cool to be living in a time when we may be the first generation to not die. I’m not suggesting immortality, but lifespans so long that we stop thinking about lifespans.”
Johnson also acknowledged the physical and financial demands involved in undertaking such an ambitious experiment.
“At the end of the day, the one thing we each care about more than anything else is one more breath. I’m proud of Kate for taking on this responsibility. It’s painful, exhausting and costly,” he shared.
Tolo, for her part, has publicly supported Johnson’s transparency, even after he shared highly personal information about her health online.
In a previous post, she agreed that talking about her vaginal microbiome might seem “unhinged” to some but admitted that she is “grateful” to have a boyfriend “who takes my health, his health, and our collective health seriously.”
What do you think about this massive human experiment? Please share your thoughts with us in the comment section below!
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