Bryan Johnson has surprised his audience yet again, this time by posting unusually personal updates about his sex life.
Known in the biohacking world for the extreme steps he says he takes to slow or ‘reverse’ aging, the 48-year-old has also been in the spotlight thanks to the Netflix documentary Don’t Die: The Man Who Wants to Live Forever.
Johnson recently shared that he has been in a relationship for three years with Kate Tolo, 30, the co-founder of his longevity startup Blueprint.
In the post announcing their relationship, he wrote that the pair ‘have nearly become one person’. Since then, he has continued to reveal increasingly private information — including, most recently, details about her vaginal microbiome.
It came shortly after he posted to his one million followers on X: “Just gave Kate oral sex. Goodnight everyone.”
Two minutes later, he followed up with another claim, saying Tolo’s vagina was in the ‘top 1% of all vaginas’.
He then attempted to back up the statement by sharing a chart.
Writing to followers, Johnson said: “This is her vaginal microbiome report. 100/100 score.”
He added further context about the results, explaining: “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 lab found nothing bad to report. (no gardnerella, Candida, STIs, opportunistic pathogens, aerobic vaginitis markers, etc.)”
Johnson went on to say the report’s score was associated with a reduced likelihood of a range of issues, including ‘BV, UTIs, yeast infections, HPV persistence, HSV-2 and HIV acquisition, preterm birth, and improved IVF outcomes.’
He closed by claiming lifestyle factors can influence vaginal health: “A vaginal microbiome is downstream of everything: sleep, glucose control, stress, gut health, sexual health, immune function, what you eat, and what you put in it,” before posting the graph.
The post quickly drew attention online, including a response from Tolo herself in the replies.
This is her vaginal microbiome report. 100/100 score.
Top 1% of all vaginas.
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,… pic.twitter.com/Pt1JbKM5y0
— Bryan Johnson (@bryan_johnson) April 30, 2026
She said that while it may look ‘unhinged’, oral sex is something she believes ‘isn’t spoken about enough’.
Tolo then listed potential health risks tied to the act, including HSV-1, HPV and oral gonorrhea.
“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… or talk to partners about dental health, recent illness, or when they were last screened. It’s a public health gap,” she continued.
She added that she was ‘grateful’ to have a partner who prioritizes her health, ending with a reminder for others to take safety seriously.
“Well said,” Johnson responded.