About Phaes: how it was born | Phaes
Our story

How Phaes was born.

Phaes did not start as a product idea. It started with an endurance coach whose athletes kept stalling in perimenopause, and who then went through it herself.

Kristina, the founder of Phaes, smiling in her home gym in front of a squat rack.
Kristina Founder of Phaes, endurance coach, 25 years in healthcare

In her words

I have always been fascinated with the human body. In college I earned my bachelor's degree in dental hygiene with a focus in human science, and I worked for over 25 years in the dental field. I loved the continuing education courses, the new research, the constant learning.

After 2020 I felt fulfilled in my career, finally paid off my student loans, and decided it was time for a change. I had spent my entire adult life competing at the elite level in cycling and running, with several years dabbling in triathlon and mountaineering along the way. Endurance sport came easy to me. I had been coached by a lot of people over my competitive years and learned something from all of them, but I always felt I needed something more than just a training plan.

My athletes kept hitting a wall

I started coaching endurance athletes, and some of them were struggling with perimenopause. There was not much information available, so I did my best to research how to train through that phase of life. When Stacy Sims released her book in 2022, I bought it immediately.

I thought I was doing really well with those athletes. Many of them still struggled to make progress. So I kept trying, and I kept listening to them. I found they needed more recovery and more easy days. I encouraged more strength training. But disrupted sleep made recovery almost impossible.

Then it happened to me

Fitness had never been a struggle for me. Then one day I was just really tired. I could barely get through my run. My body hurt everywhere and I could not sleep for months. I never had hot flashes or vaginal dryness, so hormonal changes were not on my radar. Seriously, that is what I thought menopause was.

Anxiety worsened and I had terrible ringing in my ears. My body hurt so badly I could barely get through an easy workout. In five months I lost 2 lbs of muscle and gained 7 lbs of fat, visibly in my midsection, while eating healthy, lifting heavy, and doing cardio six days a week. Then my annual bloodwork came back with dangerously high cholesterol. I thought I was dying.

The answer came from my esthetician

When I started getting severe acne on my chin, the woman who does my facials told me to call my doctor and ask whether I was in perimenopause. I went in for a visit. We had a long conversation about what was happening, and she gave me resources to educate myself, including Mary Claire Haver's books. I came back to my doctor with a plan.

We started MHT (HRT), and within 48 hours I began to feel like myself again. I still had a lot of work to do if I wanted to lower my cholesterol and get my fitness back.

Then women started finding me

I changed my workout routines and began working with a nutritionist. As I started to figure out my own journey, I also began to understand what other women were going through. I reached out to friends and family to talk about their experiences with perimenopause and menopause. The biggest struggle is losing your ability to do your sport, especially when that sport is your social time.

I began sharing my knowledge and experience, and I was flooded with women asking me to help them. Many of them came to me injured, from training plans that trained them like 20 year old men.

So we built something better

When I work with someone one on one, we combine subjective and objective data to create a training experience that flows with your life and your hormones. Not everybody can afford one on one coaching, and some women do not want it. I also have to cap my intake of athletes so I can give each of them the best experience I can. I felt a need to create something better for people.

My partner is a software programmer, and we were talking about how I wanted to help women train smarter but also track their symptoms, bloodwork, medications, cycle, and more. That became Phaes: strength and cardio workouts that adjust to your symptoms and your fatigue, with a place to keep the rest of the picture alongside them.

The app will keep evolving as the research does, and your feedback will help shape what it becomes. This is for all the women out there who want to track their perimenopause journey, sign up for the dynamic training plan, or both. Thank you for hearing my story.

Your hormones are giving you an opportunity to put yourself first.
Kristina, founder of Phaes

What we hold to

The principles behind every plan, every prompt, every screen.

A judgment-free space

Nothing about your body is treated as a problem to hide. You log how you actually feel, honestly and privately, and your plan simply listens. No shame, no whispering, no pushing through in silence.

Train with the change

Cycles shift. Energy swings. Perimenopause rewrites the rules. Phaes adapts your training so you build strength appropriately through every season, never overreaching, never underestimating what you can do.

Your body, your terms

You decide what to track and what to share. Your data exists to serve your training and your health, to give you a clearer picture of yourself, not to be sold or used against you.

Built for the long run

Whether you are training for a race, getting in shape, or getting stronger, the goal is the same: keep you healthy, strong, and moving for life, through every phase, at every age.

Movement is for every body,
in every season.

Run, lift, or just get moving: Phaes is the app that finally trains like it. Come train with a plan that knows the whole story.

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