Kayla Barnes-Lentz
FEMALE LONGEVITY RESEARCHER

Kayla Barnes-Lentz

I'm sharing my data and have built the first and most comprehensive publicly available longevity protocol for female biology.

Health and longevity research has ignored female physiology for decades. I'm helping change that, as the most publicly measured woman in the world.

Free Longevity Starter Guide. Unsubscribe anytime.

Kayla Barnes-Lentz, female longevity researcher FIG. 01
AS SEEN IN Elle USA Today Wall Street Journal Fortune Forbes The Times Harper's Bazaar Wired Bloomberg

“Kayla Barnes-Lentz has built a cult-like following in the world of female longevity.”

USA TODAY
ABOUT
§ 01

"For a decade I've been working to optimize my health, tracking my own biomarkers and working alongside female MDs and PhDs to understand what actually moves the needle. I publish everything I learn, openly."

READ MY STORY →
Kayla Barnes-Lentz in cold water therapy
FEMALE LONGEVITY
The future of female longevity.
MEASURED SINCE 2019

The deepest dataset on one woman.

Female longevity deserves to be built on something better than assumptions and male-default data. This is my attempt to contribute to that foundation.

Since 2019, I’ve tracked my body every single day. Wearables day and night. Continuous glucose monitoring. A whole-body MRI every year since 2022. Coronary imaging, pelvic ultrasounds, mammograms, QT breast imaging, colonoscopy. My full genome sequenced. And the most advanced interpreted panels available, gut, immune, hormonal, micronutrient, and toxic-burden, run four times a year, year after year.

Over 2 billion data points from my body, collected continuously and shared.

But the number isn’t what I’m most proud of. The time is. Most health data captures a moment. What’s rare is continuous measurement over years, long enough to see not just what a body looks like, but how it changes, responds, and recovers. The female body is cyclical and dynamic. It can’t be understood in a single frame. It takes years.

This is N-of-1 data, my story. It won’t map neatly onto every woman; we have different genetics, histories, and biomarkers, and we change over time. The goal isn’t to hand anyone a protocol to copy. It’s to show what’s possible when you measure deeply over time, and to inspire more women to dig into their own data and build protocols that fit them.

What I want you to take away is that your body is knowable. The patterns behind your energy, your cycle, your recovery, your aging, they’re all measurable, and they’re yours to understand. I want more women to realize they don’t have to accept vague answers about their own health. Female longevity deserves to be built on real data, starting with your own.

2B+
DATA POINTS iThe figure counts data at the sensor and image level, the standard way continuous health data is quantified, across seven years of continuous wearables, annual whole-body and female-specific imaging, genetic testing, and thousands of interpreted clinical biomarkers.
Since 2019
TRACKED DAILY
4× / yr
INTERPRETED PANELS
MRI
WHOLE-BODY, YEARLY SINCE 2022
Female
PELVIC, BREAST & HORMONAL IMAGING
Cleerly
CORONARY CTA & PLAQUE ANALYSIS
This is female longevity, measured.
Explore the work
FIG. 02 · WHAT THE DATA SAYS
Ovarian age−5 yrs
Cardiovascular age−11.5 yrs
VO₂ max46 · Optimal
Grip strength100.6 lbs
Muscle massTop 1%
BY THE NUMBERS
31
SYSTEMS MAPPED
2B+
DATA POINTS
300K+
COMMUNITY
Free
PROTOCOL
ASK

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01 Get the Longevity Starter Guide The fastest way in. Foundational protocols built for female biology, one focused lesson at a time. BEGIN → 02 Explore the protocol The 31 systems that make up the first longevity framework built for women. BROWSE → 03 Get the free resources The optimal lab ranges I track and the exact products I use, gathered in one place, free. VIEW RESOURCES →
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Go deeper, long-form.

PODCAST The Longevity Optimization Podcast Deep conversations with the world's top doctors and scientists on female longevity. LISTEN → YOUTUBE Full episodes & protocol deep-dives Long-form video, walkthroughs, and the science behind the protocol. WATCH →

Recent Press

SELECTED FEATURES
BLOOMBERG · MAY 2026 The Woman Bringing Longevity to Women Left Out of the Boys Club +

A Bloomberg profile of Kayla and how she is closing the gender gap in longevity research for women.

READ THE FEATURE →
ELLE · 2026 “Women Want to Live Forever, Too” +

ELLE on Kayla and the women bringing rigor, and their own data, to female longevity.

READ THE FEATURE →
WALL STREET JOURNAL · 2026 “Step Aside, Longevity Bros. It’s Time for the Longevity Ladies” +

How women became the defining force in the next era of longevity.

READ THE FEATURE →
Kayla Barnes-Lentz
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MEDICAL DISCLAIMER
The content on this site is for educational and informational purposes only and is not a substitute for professional medical advice, diagnosis, or treatment. Always consult your physician or another qualified health provider with any questions about a medical condition or before making changes to your health, supplement, or exercise routine.
Kayla Barnes-Lentz

Female longevity research & evidence-based optimization. Austin, Texas.

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