Biohacker Bryan Johnson is keeping his girlfriend’s menstrual blood in his freezer

‘It’s important to remember that Tolo (who has a background in fashion) and Johnson (whose background is in tech) are not exactly highly credentialled medical researchers.’ Photograph: Bridget Bennett/Bloomberg via Getty Images

The tech entrepreneur Bryan Johnson has devoted his life to dodging death. The 48-year-old is obsessed with becoming the healthiest person in the world and is on a quixotic quest to reverse his biological age and live forever. As such, Johnson is disciplined about what he eats, takes dozens of supplements a day, and measures every single biomarker possible, boasting that he is “certainly the most biologically measured person ever”.

In short: good luck finding any ice cream in his freezer. But you know what you will find? His girlfriend’s menstrual blood. On Thursday, Johnson, a chronic oversharer, posted a photo of his 30-year-old girlfriend, Kate Tolo, on X with the caption: “Kate’s period blood is in my -80 °C freezer. Around 10 mL.”