Kate Toro’s Endometriosis Journey: How Bryan Johnson Is Using Health Tracking to Search for a Diagnosis

Kate Toro got it. Her first period came when she was 13. The experience left her on the floor, convulsing, weak and sweating all over.

When Toro told her father why she had come home early from school, he replied, “We don’t talk about women.” Then he walked away.

For most of her teenage years, Toro viewed her period as something she was not supposed to discuss. In her early 20s, after experiencing extreme pain during bowel movements and being rushed to the emergency room, doctors suggested she might have endometriosis.

According to the World Health Organization, endometriosis affects about 10% of women of reproductive age.

Why Toro Refused Endometriosis Surgery

Endometriosis involves endometrium-like tissue and is commonly associated with extremely painful or heavy periods, pelvic pain, bowel problems, pelvic floor dysfunction and painful sexual intercourse, also known as dyspareunia.

Doctors recommended a laparoscopy, an invasive surgical procedure used to formally diagnose endometriosis and remove endometriosis-related tissue. Toro refused.

“I had no intention of undergoing invasive surgery or cutting myself open,” she says. “That wasn’t an option for me.”

Kate Toro’s Female Health Protocol

In early 2026, Toro began developing Concierge Health Services with her boyfriend, Bryan Johnson. Johnson is an engineer, millionaire and biohacker known for his pursuit of radical life extension through intensive self-optimization and health protocols.

During a clinical examination, Toro shared her lifelong struggle with suspected endometriosis. Johnson then became focused on finding a potential diagnosis and treatment approach.

Since their relationship became serious last December, Johnson has positioned Toro as a “Female Brian Johnson.”

With $2.6 million in funding from Immortals, the wellness company they founded, Toro has begun tracking more than 1,500 biomarkers throughout her menstrual cycle.

The measurements have included samples from her blood, urine, stool and other sources. In a recent Business Insider profile, the process was described as “an elaborately choreographed four-hour techno-ballet of scratching, sniffing, spitting, scanning, stretching, squeezing, vibrating, bending, pinching, poking, pulling, peeing, and pooping.”

From Fashion Marketing to Intensive Self-Tracking

The role is relatively new for Toro, 30, who previously worked in fashion marketing. She later became Johnson’s executive assistant and, in 2021, director of special projects at Kernel, Johnson’s neurotechnology company.

Toro describes herself as an introvert and said she was initially nervous about becoming “the most thoughtful woman in the world,” as Johnson called her in a video last August. He also said that her vaginal microbiome was in the “top one percent” of all vaginal ecosystems.

Toro has struggled with depression and anxiety. During the second week of the protocol, she experienced a panic attack after her internet went down while she was trying to administer red-light therapy.

“For people who don’t like routine, it’s a very unpleasant experience,” she admits. “So that pressure really got to me.”

“I’m Doing This for Women”

Despite the demands of the protocol, Toro says the work serves a larger purpose.

“Even when every part of my body is screaming ‘no more,’ I find myself pushing myself to the limits of what my body is capable of mentally and physically, because I’m doing this for women,” she says.

Can Endometriosis Be Diagnosed Without Surgery?

One of Toro’s main goals is to help develop a reliable method for diagnosing and treating endometriosis. The couple has documented the process on their social media channels.

Toro has not undergone surgery and has never received an official endometriosis diagnosis. However, the couple says they identified endometriosis over a 42-day period using non-invasive methods, including saliva and blood tests and endometriosis-specific ultrasounds.

A transvaginal ultrasound and an initial MRI initially produced clear results. The couple’s next step is to use cells from Toro’s menstrual blood to create organoids—“essentially me in a petri dish,” as she describes them.

Toro plans to use the organoids to test different interventions and compare the results with a more traditional biopsy.