Bryan Johnson, the 48-year-old billionaire biohacker who spends $2 million a year trying to reverse his own biological age, is back in the headlines after publicly posting his partner’s vaginal microbiome report for millions to see. The disclosure sent shockwaves across social media and reignited conversations about where health transparency ends and privacy begins.
Johnson, who was the subject of the Netflix documentary Don’t Die: The Man Who Wants to Live Forever, kicked off the saga late on April 30 with a blunt announcement to his one million followers on X. He wrote: “Just gave Kate oral sex. Goodnight everyone.” That post alone racked up more than 5 million views. Just two minutes after posting it, Johnson followed up with something even more personal.
“This is her vaginal microbiome report. 100/100 score. Top 1% of all vaginas,” he wrote, then backed the claim up with a graph shared to his timeline. The subject of the data was Kate Tolo, 30, a co-founder of his longevity startup Blueprint, whom Johnson confirmed he has been dating for three years.
What Johnson actually shared and why
According to UNILAD, Johnson’s post went deep into the science behind the results. He explained that Tolo’s sample was dominated by Lactobacillus crispatus, which he described as “the single most protective bacterial species a vagina can host.” He noted that only around 25 to 30 percent of women of reproductive age globally have L. crispatus-dominant microbiomes, and that dominance typically means a concentration above 50 percent. Tolo’s figure came in at 98.7 percent.
He also pointed out that the lab returned no concerning findings, with no STIs, no bacterial vaginosis markers, and no opportunistic pathogens detected. Johnson argued the vaginal microbiome connects to broader health outcomes: “sleep, glucose control, stress, gut health, sexual health, immune function, what you eat, and what you put in it,” he wrote. He said Tolo’s score was linked to lower risks of UTIs, yeast infections, HPV persistence, and even improved IVF outcomes. This is the kind of boundary-pushing behavior Johnson has made into a brand identity. LADbible previously reported that he has also shared nighttime erection data from both himself and his teenage son.
Kate Tolo responded and defended the posts
Tolo did not stay silent. She jumped into the replies and acknowledged the posts looked odd but argued the topic needed more public attention. “I know this seems unhinged, but oral sex isn’t talked about enough,” she wrote. She went on to list the health risks often overlooked around the practice, including HPV, HSV-1, and oral gonorrhea, noting that the bacteria in saliva can disrupt vaginal health and raise rates of bacterial vaginosis.
“Oral sex is great… the problem is that we don’t treat it seriously,” she said. “People who would never skip a condom will go down on a new partner without a second thought. People don’t get tested for oral STIs… It’s a public health gap.”
She added that she was “grateful” to have a partner who takes their collective health seriously. Johnson replied with two words: “Well said.” The exchange is not unlike what happened earlier with KlaudiaGlam’s mom, who also went viral for a deeply personal health crisis that played out publicly online.
Reactions online were loud and split
The posts triggered a flood of responses, ranging from fascinated to firmly opposed. Some users praised Johnson’s openness. One wrote: “Bryan, you are one unhinged motherf**ker and I absolutely love you for it. Keep it up brother.” Others were more uncomfortable with the level of detail, with one user writing: “Okay so the ‘just had sex with Kate’ was cool. This one idk maybe keep this to yourself Bryan!”
Privacy advocates and critics in the biohacking community have raised broader concerns. The controversy highlights a real tension between the “quantified self” movement and basic medical confidentiality. Johnson, who sold Braintree to PayPal for $800 million and now channels a significant portion of his fortune into Project Blueprint, has previously described himself as the “world’s most measured human.” For him, no data is too private to be useful. His fans tend to agree. His critics are growing louder. It raises the same questions sparked by unsettling online moments like a family stumbling across a creepy face staring back at them during a virtual house tour, where the line between sharing and oversharing becomes impossible to ignore.
