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Bryan Johnson and Kate Tolo turn intimacy into a high-cost data play

The Blueprint cofounders are trying to map Kate Tolo's menstrual cycle with 50 devices and 30 apps, at a reported cost of $2.6 million a year. For founders, it is a reminder that extreme optimization can become its own business model.
SEP 14, 2026

Bryan Johnson says he and Kate Tolo are building a model for how humans can co-evolve with AI. In the process, their relationship has become one of the most public experiments in the longevity world.

Johnson, who sold a payments company in 2013 and is now the face of the $30 billion longevity industry, says he spends $2 million a year on his body. He consumes 2,250 calories a day, including 130 grams of protein, 30 vitamins and supplements, and stops eating at noon. He also says his nightly erections last 4 hours and 2 minutes.

Tolo, Blueprint's cofounder, is taking the next step in measurement. She was recently diagnosed with endometriosis, which affects about 10% of women, and wants to create a detailed biological portrait of herself to help better understand women's health. She says, 'My job is to be the Rosetta Stone for women.'

Her routine is designed to track how variables change across her menstrual cycle. It involves 50 devices and 30 apps and would cost $2.6 million a year, logging data from pain tolerance and reaction time to grip strength and vaginal wetness. Johnson says the goal is to understand her body at a level he believes could make the project useful to others.

The couple says their lives are tightly tied to the protocol. They usually have sex two to three times a week, most often between 3 and 5 p.m., and Johnson says Tolo's well-being depends on touch. He also says the stress of the project delayed her period in June and July before it began on Tuesday.

For founders, the story is bigger than celebrity oversharing. It shows how far the modern optimization mindset can go when every signal becomes a metric, every metric becomes a product, and every product becomes part of the brand. That can produce useful data, but it can also turn private life into an operating system.

The math is simple: if measurement helps solve a real medical problem, it has value. If it only feeds the machine of self-quantification, it becomes expensive theater. The line between the two is where the market, medicine, and human limits collide.

LK
Laura Kessler
Money Columnist

Laura Kessler covers capital, taxes, markets and the economy — a founder's guide to the numbers, from runway to revenue.

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