Train With Your Body. Not Against It.

Stop the crash-and-burn cycle. PhaseFlow tells you exactly when to push, reduce, or rest—based on your Garmin data, cycle phase, and Hashimoto’s.
Join the Pilot Program →

Your body IS trying to tell you. PhaseFlow helps you listen.

You Do Everything Right. And Your Body Rebels.

You do everything right

You crush a workout—PRs, good form, that post-gym high.
The next three days? Brain fog you can’t shake. Energy in the negatives.

Your period disappears for two months. Or shows up twice in one.

Your Garmin says you’re recovered. Your body says absolutely not.

Are you wondering

My HRV is green, but I feel like death. Do I train?

My period is 3 weeks late. Did I overtrain again?

Week 1 I’m unstoppable. Week 3 I can barely function. Is that normal?

Here's what nobody tells you

With Hashimoto’s, your body doesn’t follow standard recovery patterns.
Your luteal phase isn’t just “a bit harder”—it’s metabolically different.
Your thyroid medication interacts with your cycle hormones.
Your inflammatory response varies week to week.

But your Garmin doesn’t know this.
Your trainer doesn’t track this.
You’re guessing. Every single day.

Until now.

The Data doesn’t lie

PhaseFlow analyzes your Garmin data daily and sends you clear guidance:
Train, Reduce, or Rest.

Before

  • Very late cycle
  • Happy and excited after workout but then crashed exhausted
  • Trouble sleeping, mood swings
  • HRV unbalanced

After

  • Cycle back on track
  • Feeling confident about how to workout
  • HRV, Body Battery and Stress Levels normalised
  • Stable mood swing
  • Clarity on how to combine with nutrition (more or less carbs, which seeds are most beneficial, etc.)

CLEAR DECISIONS, EVERY DAY

1.  Garmin Data

HRV, BB, Intensity, Cycle Phase

2. PhaseFlow

Analyzes

3. Daily Email

  • Train/Reduce/Rest
  • Suggested Nutrition Protocol

Automatic Daily Guidance

  • Training decisions from your Garmin data
  • Personalized nutrition protocol

Always With You

  • Daily email with clear actions
  • Access on any device

Built for Your Body

  • Cycle-synced intensity limits
  • Hashimoto’s-specific guidance
  • Prevents menstrual disruption

Have you been doing it right but something is off?

The problem isn’t your discipline.
The problem isn’t your genetics.
The problem is you’re using a training system designed for bodies without Hashimoto’s.

SELECTED TESTER PROGRAM

Help Us Perfect PhaseFlow

We’re selecting 10 women with Hashimoto’s to pilot PhaseFlow
and help shape the future of cycle-synced training.

As a pilot participant, you’ll get:

✓ Free access to PhaseFlow during the pilot phase
✓ Direct input on features and improvements
✓ One-on-one support from me (the founder)
✓ Early adopter pricing when we officially launch
✓ The satisfaction of helping other women train smarter

Requirements:

  • Hashimoto’s or hypothyroidism
  • Garmin watch (Fenix, Forerunner, Venu, etc.)
  • Exercise 3+ times per week
  • Frustrated with not knowing when to push vs rest

Do you have a Garmin watch?

Do you have Hashimoto's or hypothyroidism?

NOT ELIGIBLE FOR THE PILOT?

Join the waitlist and be the first to know when PhaseFlow launches.No Hashimoto’s or Garmin required. Just your interest in training smarter.

We’ll email you about the official launch, pricing, and early access opportunities.
No spam. Unsubscribe anytime.

Frequently Asked Questions

 

Q: What exactly is PhaseFlow right now?
A: PhaseFlow is currently a Google Sheets-based automation that connects to your Garmin data and sends you daily training guidance via email. The pilot program helps us refine it before building a full app.

Q: How do you get my Garmin data?
A: You’ll share read-only access to your Garmin Connect account. We only pull HRV, Body Battery, training load, and cycle tracking data. Your data is private and secure.

Q: Do I need to track my cycle in Garmin?
A: It helps, but it’s not required. You can manually input your cycle phase, or we can estimate based on your symptoms and HRV patterns.

Q: What if I don’t have Hashimoto’s but have another thyroid condition?
A: The pilot is specifically for Hashimoto’s/hypothyroidism, but join the waitlist—we may expand to other conditions in the future.

Q: How much will PhaseFlow cost after the pilot?
A: We haven’t finalized pricing yet, but pilot participants will get lifetime early adopter pricing (significant discount from regular pricing).

Q: What if I use a different fitness tracker?
A: Right now, PhaseFlow only works with Garmin. We may add other trackers later—join the waitlist to stay updated.

Q: How much time does this require from me?
A: Zero daily time. PhaseFlow pulls your Garmin data automatically and emails you guidance. You just read the email and decide whether to follow it.

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Testimonials

Coming soon

Made by someone who lived the problem

I’m Inês. Former executive, MBA, now running a regenerative farm in Portugal with my family.

For years, I couldn’t figure it out.

I crushed workouts and crashed for days. My period disappeared for months at a time. My thyroid antibodies spiked every time I tried to “push through.”

My Garmin data looked perfect. My training plan was “optimal.”
My thyroid medication was dialled in.

But my body was screaming—and I didn’t speak the language.

Then I discovered my cycle phases weren’t just affecting my mood.
They were changing my cortisol response, inflammatory markers, and recovery capacity.

Week 1 of my cycle, I could train hard and recover beautifully.
Week 3, the exact same workout would tank my HRV and delay my period.

My body wasn’t broken. It was trying to tell me when to train
and when to protect my hormones.

I just needed someone to translate.

So my husband Petru (former Lead Engineer at Google) built it for me.

Now I train harder than ever—without the crashes.

And we want to help you do the same.