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What 500,000 Women Taught Us: How Sesh Fitness Led to Sesh Diagnostics

A decade with half a million women showed us exactly what was missing, and Sesh Diagnostics is what we built because of it.
You know the version of yourself you are trying to get back to.
She had energy. She slept through the night. She felt at home in her own body. And somewhere between the pregnancies, the stress, the work-life-balance, and the "everything looks normal" appointments, she got harder and harder to find.
If that is you, here is the first thing we want you to know: you are not failing, and you're not making it up. We can say that with confidence because we have spent time alongside 500,000 women while building Sesh Fitness, and the data they gave us pointed in one direction so clearly that we could not ignore it. Sesh Diagnostics is what that those women told us to build without even knowing it.
A decade with 500,000 women is a lot of data
For years at Sesh Fitness, we have helped half a million women train smarter and eat better. That is not just a number we are proud of. It is the largest, most honest focus group on women's health we could have ever asked for.

And when you listen to 500,000 women for that long, patterns emerge that you cannot un-see.
We kept hearing the same sentence, almost word for word: "I am doing everything right and nothing is working."
She was training hard. She was eating well. She was doing what the internet (and most doctors) tell women to do. And she was still exhausted, still not sleeping, still watching the scale refuse to move, still being told by her doctor that her bloodwork was "normal."
One woman saying that is a bad week. Thousands of women saying it, across every age and life stage, is a signal. These women were not lacking effort. They were lacking information. Nobody had ever tested the things that were actually driving how they felt.
The stories became a blueprint
Every time we heard the same story, it told us a little more about what was actually missing from women's health. Not motivation. Not another workout. What was missing was access: the right testing, someone qualified to interpret it, and the clinical therapies that can actually move symptoms instead of managing them.
Over the years, that feedback became a blueprint. The questions women kept asking us became the services we knew we needed to offer. The dead ends they kept hitting in conventional care became the exact gaps we set out to close. We did not invent Sesh Diagnostics in a boardroom. Our clients designed it, one story at a time.
Then it happened to us, too
And then the pattern stopped being something we observed in other women. It became ours.
The same wall our clients kept describing, we hit it ourselves. The fatigue that does not make sense. The labs that come back "fine" while you feel anything but. The quiet, frustrating sense that something is off and no one can tell you what.
Hilary Combs, SeshDx Managing Partner, had worked at Sesh Fitness for over 5 years when she experienced something she'd heard so many times from clients of Sesh. Postpartum anxiety, fatigue, unexplained pain, and weight gain that wouldn't leave no matter what she did. In 2023 she received functional testing to get to the root-cause of what was happening when every doctor said what she was feeling was normal…and she never looked back.
Now, since she's experienced it first hand herself, and with clients of Sesh Fitness, it's a true passion of hers to help women feel validated, understood, listened to and ultimately helped back to being the optimal version of themselves. By partnering with Shae and licensed clinicians all over the country, she found a way to connect these women to the help they need to solve their symptoms for good.

"I spent seventeen months being told I was fine while I knew something was wrong. Basic labs said normal; but I felt genuinely physically and mentally horrible. When a functional medicine specialist finally looked deeper, every answer I needed was there, but no one had bothered to check. I built Sesh Diagnostics so no other woman loses a year and a half waiting to be believed." - Hilary Combs, Managing Partner of Sesh Diagnostics.
Shae Davis, resident FDN-P, CPT, CNC at SeshDx spent years helping women transform their health through sustainable fitness, nutrition, and lifestyle habits. After losing more than 70 pounds herself and coaching hundreds of thousands of women through Sesh Fitness, she firmly believed in the power of the fundamentals.
But over time, she noticed a pattern she couldn't ignore. Through her own experience with functional testing, she discovered how much information can be missed when the focus remains solely on whether labs fall inside a standard reference range. For the first time, she was able to connect pieces of her own health picture and better understand what was happening beneath the surface.
That experience ultimately led her to pursue certification as a Functional Diagnostic Nutrition Practitioner (FDN-P), combining the foundation of fitness and nutrition with a deeper understanding of the internal factors that influence how women feel, perform, recover, and age.

"For years, I helped women build stronger bodies through training and nutrition, but I kept hearing the same thing: 'I'm doing everything right and still don't feel like myself.' Then I found myself asking some of those same questions. Functional testing gave me answers I didn't know were available and helped me connect the dots in a way standard labs never had. That's when I knew I wanted to make those same tools accessible to the women who trusted me with their health. Every woman deserves the chance to understand what's happening inside her body instead of being left to guess." - Shae Davis, FDN-P, CPT, CNC
Living it ourselves confirmed everything the data had already shown us, but we now felt it in our own bodies and experienced in our lives, too. That was the moment the next chapter was so clear.
Why "normal" kept failing all of us
Here is the root of what those 500,000 women were running into.
Most healthcare is built to catch disease. That is a good thing when you are sick. But "not sick" and "feeling like yourself" are very different bars, and most women live in the gap between them.
A standard physical checks whether you are in the danger zone. It rarely looks at the markers that explain how you actually feel day to day: your cortisol rhythm, your sex hormones, your gut health, your metabolic and micronutrient status. So you get sent home with a clean bill of health and zero answers.
Said plainly: your labs can be "normal" and your life can still feel off. Normal is not optimal because "normal" ranges are built on the entire U.S. population. And surviving is not thriving.
Everything they showed us, built into one place
Sesh Diagnostics is the direct result of everything a decade of women taught us they needed, and it carries the best of Sesh Fitness forward instead of leaving it behind. Here's what we kept:
The foundation.
We will always believe in movement and nutrition. Every Sesh Diagnostics plan still comes with free training and nutrition through the Sesh Fitness App, built for women, because a therapy without a foundation is a short-term fix.
Here's what we added, because our clients showed us we had to:
We test, we do not guess.
When it helps and makes sense, we start with functional labs that look at the markers your annual physical skips. Then Shae, our FDN-P, interprets them. You are not handed a printout and a shrug.
Real clinicians, real prescriptions.
Your intake is reviewed by licensed, board-certified U.S. clinicians who can prescribe in your state. That opens the door to therapies women kept asking us about, from GLP-1s like Tirzepatide for supervised, muscle-protective weight loss to peptides and longevity support like Sermorelin and NAD+.
In other words, the half a million women who trained with us did not just inspire Sesh Diagnostics. They built it.
You choose where to start
Because every woman told us something different, there is no single front door.
Not sure what is going on? Start with labs and let the data lead.
Already know what you want to try? Talk to a clinician about a prescription.
Want a human in your corner first? Start with coaching.
Every path is paired with the training and nutrition foundation, and every path can grow as you do.
The point is that you are finally being met with what you actually need, instead of being told you are fine and sent on your way.
The next chapter was written by the women in it
The same women who trusted us to help them get strong are the ones who showed us they needed more, and we listened.
If you have been told you are "fine" and you know you are not, you are exactly who we built this for. You deserve more than a clean lab report and a closed door. You deserve to feel like you again, and the data to get there has existed all along. Most women were just never offered it.
If you are not sure where to start, that is what our quiz is for.
Take the free 3-minute quiz and we will point you to the right starting point for your body. Free, fast, no commitment.
Sesh Diagnostics is the clinical arm of Sesh Fitness. Treatments are prescribed at the discretion of licensed U.S. clinicians. Not all patients qualify. This article is for educational purposes and is not medical advice.
