Kayla Burns Lentz and the Rise of Super Longevity Tracking
Longevity entrepreneur Kayla Burns Lentz meticulously measures everything in her life to live longer.
AUSTIN — Overhead lights and lamps in homes change from bright yellow to soft orange. Every room features custom furniture that is free of volatile organic compounds (VOCs). Other features include a hyperbaric chamber, a PEMF machine, a sauna with built-in red light therapy, a home gym, and a cold plunge pool. Air purifiers protect the occupants of your home from all harmful substances that enter from the outside. Say what you like about longtime entrepreneur Kayla Burns-Lentz: This woman is methodical.
The 35-year-old is the most publicly measured woman in the world and has developed a cult following as the first woman to undergo an ovarian biological age test. Her ovaries are 30, not 35, thank you.
After living on a diet of Pop Tarts and toaster strudel, Burns-Lentz chose to study nutrition in college. Although she didn’t graduate, that didn’t stop her from learning all she could about how to live a healthy lifestyle, including earning certifications and growing her business, Burnslenz said. She opened her clinic LYV in Ohio in 2018 (retiring in 2025), aiming to improve health metrics in the process. Research doesn’t necessarily support everything she does, and some experts worry that her legion of fans may be misled by the data she shares widely.
Burns-Lentz has equipped LYV with a medical team that strives to give patients a deeper look into their health than a typical doctor’s visit. Bowel exam, advanced thyroid panel, total toxin test. She was the clinic’s first patient. And she began publishing her results in 2019.
“I said, ‘Guys, why don’t we develop the most science-backed protocol for longevity?’ Essentially, that’s what I was thinking about: How healthy can I make myself?” she says.
She discovered some differences early on that distinguish her personal data from previous studies conducted on men. For example, calorie restriction disrupted menstruation.
“For the first time, I had irregular periods. My thyroid started to fail. I ended up being prescribed thyroid medication. So I took a step back and thought, ‘Okay, wait a second, this doesn’t seem right,'” she says.
Burns-Lentz’s experience is not surprising. For example, two-thirds of dementia and Alzheimer’s disease occur in women, but they are not proportionally represented in research. As of 1993, women were only required to participate in clinical research, not to mention that only 1% of federal funding went to women-specific research outside of cancer. It’s the Wild West for women’s health and longevity, and Burns-Lentz is at the helm.
“We live in exciting times.”
Reading the complete Barnes-Lentz protocol is like trying to read a dictionary from A to Z at once. There’s nothing left to take in all. However, you can certainly pick and choose which factors to focus on, such as what scans she recommends, what supplements or prescriptions she takes, and a general picture of her daily life.
If you read too quickly, you may miss important medical disclaimers. “This website, including the experimental results presented, is for informational purposes only and does not constitute medical advice or professional services,” it says. “The information provided should not be used to diagnose or treat any health problem or disease. Persons seeking medical advice should consult a qualified physician.” Other longevity practitioners, including Brian Johnson, have posted similar messages on their sites. She also emphasized that she prioritizes the basics of sleep, exercise, stress management, nutrition, and connection over many devices.
A snapshot of her protocol: She wakes up naturally at 5 a.m. every day, takes a body composition test, then works out and does red light therapy in the sauna. Breakfast follows. She rotates what she eats, but it always includes fermented foods, proteins, vegetables, and a Greek yogurt or coconut yogurt bowl. Her plates sometimes include eggs, salmon, vegetables, arugula, and spinach. She mixes collagen peptides and countless fibrous seeds in a yogurt bowl. She strives to get 40 grams of fiber per day and 60 grams of protein from breakfast alone.
After starting work at noon, she goes for a walk, puts on a red-light laser cap, and spends an hour in a hyperbaric oxygen chamber. She starts making an organic dinner around 2 or 2:30 p.m., eats at 3 p.m., takes her evening supplements, and is in bed by 8 p.m. (she has an entire room in her home dedicated to supplements, but she emphasizes that she doesn’t take them all). My stomach rarely grumbles, but if it does in the evening, I drink plain or carbonated water.
Barnes-Lentz posts all her results, but that doesn’t mean every woman’s results mirror hers. She credits her ovarian age with lowering her ovarian age to longevity efforts, in which she and her husband, Warren Lentz, spent hundreds of thousands of dollars on equipment and tested its effectiveness at Timeless Biotech, the company she advises.
How does an ovarian age test work? “It requires some standard biomarkers that we had access to, but now we have machine learning capabilities,” she says. These biomarkers include lean body mass, height, weight, and onset of first menstrual cycle, as well as follicle-stimulating hormone (FSH) and estrogen levels.
Research has not yet confirmed that lowering your biological age in any organ can help you live longer. But this data means Burns-Lentz can consider interventions to improve her health. While she can’t pinpoint the exact reason why her ovarian age is so low, she says, “Now that we have that baseline, we only have one additional intervention (hyperbaric oxygen therapy) besides the basic lifestyle,” so she may be able to understand what effect it has had on her body when she reexamines her body next month. Burns Lentz and her husband hope to have children someday.
But what exactly does this information tell us? “While her followers believe that her ovaries are five years younger as a result of her protocol, that causal inference is completely unfounded by the data,” says Dr. Eric Berdin, president and CEO of the Buck Institute on Aging. “The science of ovarian aging deserves serious research investment. What it doesn’t pay for is anecdotes fabricated as evidence by large platforms.”
That said, “we doctors who are busy with work may not be able to do the great job she does in spotlighting preventive medicine,” says the osteopathic internist, who also specializes in lifestyle medicine and emergency medicine, and “particularly infertility medicine. When there’s so much buzz about ovaries, you might not be able to do the great job that she does of really starting a conversation that makes people go, ‘Oh, you should think about how fast your ovaries are aging.’
“Things like this are completely normal to me.”
Barnes-Lentz has built a cohort of physicians, nutritionists, and other health care providers to help inform protocols and consult with specific physicians about specialized treatments such as hyperbaric oxygen therapy, peptides, and therapeutic plasma exchange.
She earns money from affiliate links on her website and charges $19 a month for a private membership that allows her followers to ask questions directly about the protocol. However, she is not the source of income for the family.
She and her husband co-own a sauna company, Heavenly Heat Saunas. Before their first date, she asked him to undergo a myriad of tests, as well as a biomarker screening.
“If a man is going to take a stool sample for you, he’s going to cooperate long-term,” she joked during a panel discussion at SXSW in March. They had their first date in a multi-person hyperbaric chamber. She said clearly: Do you really want to come in? If pressure is applied, it will not be able to move for a while. He was down, but four months later, in 2023, they got married. She wants to live as long as he did, preferably well into her 100s.
Tests never stop in the home they share. Gadgets are spilling out of the cabinets. The toilet is equipped with a device that photographs all fecal and urine deposits. “By the way, this kind of thing is very normal for me,” she added.
Many people ask Barnes-Lentz if she is having fun or enjoying life. She must be very miserable, they think. But she says that’s not the case.
“Who decided that fun meant staying out until 3 in the morning?” she wondered during the panel discussion. “Who decided that alcohol was the only way to celebrate? Who decided this?”
