Let’s talk about early signs of perimenopause.
If your sleep suddenly changed…
If you feel more anxious at night than during the day…
If your fuse is shorter, your patience thinner, and you can’t turn your brain off the way you used to…
It might not be “just stress.”
It might be progesterone.
And these may be early signs of perimenopause because progesterone is the first hormone to change.
Let’s talk about it.
What Does Progesterone Actually Do?
Most people think progesterone is about periods and pregnancy.
When really it does so much more.
Progesterone is deeply connected to your nervous system.
Specifically, it supports the production of GABA — your brain’s main calming neurotransmitter.
Think of GABA as the exhale.
The brake pedal.
The “it’s safe to rest now” signal.
When progesterone drops, GABA often drops with it.
And that’s when things start to feel… off.
Cue those early signs of perimenopause….
Common Early Signs of Perimenopause
Early perimenopause symptoms are low progesterone symptoms and can include:
Trouble falling asleep
Light, fragmented sleep
Waking up anxious
Feeling wired but tired
Shorter fuse or irritability
PMS that’s worse than it used to be
Heavier or more symptomatic periods
Mood swings that feel new
For many women, these are early signs of perimenopause — often years before periods actually stop.
Why Low Progesterone Affects Sleep
Progesterone naturally rises after ovulation and peaks in the luteal phase of your cycle.
It has a calming effect because of its relationship with GABA.
When progesterone declines:
It’s harder to fall asleep
It’s harder to stay asleep
Anxiety creeps in
Your nervous system feels more on edge
This is why many women say:
“I’m exhausted but I can’t shut my brain off.”
It’s not just you.
It’s physiology.
Is HRT the Only Option for Low Progesterone?
Short answer: no.
Hormone Replacement Therapy (HRT) can be incredibly helpful for many women. I’m not anti-HRT.
But I always ask:
Why is progesterone low?
Is it age-related ovarian decline?
Chronic stress?
Blood sugar instability?
Thyroid dysfunction?
Inflammation?
You can add progesterone back in…
But if the system is still running on stress hormones and metabolic chaos, it can feel like one step forward, two steps back.
Hormones don’t operate in isolation.
They land in a system.
If the system is depleted, inflamed, or constantly prioritizing cortisol, the response to progesterone may be limited.
The Cortisol Connection
When stress is high — emotionally or physically — the body prioritizes survival.
That means cortisol often gets the front seat.
And when cortisol stays elevated, progesterone production can suffer.
When I say stress, I’m not just talking about trauma.
It can be:
Chronic overwork
Poor sleep
Blood sugar swings
Gut dysfunction
Infections
Toxin exposure
The subtle “always on” state
Jaw tight.
Shoulders up.
Breathing shallow.
Your body doesn’t distinguish between “big stress” and “small stress.”
It just responds.
Supporting Progesterone & GABA Naturally
If low progesterone is contributing to sleep issues or anxiety, we often look at:
Blood sugar stability
Nervous system regulation
Adequate protein intake
Magnesium status
B vitamin sufficiency
Thyroid health
Stress rhythm
And yes — sometimes supplemental progesterone is appropriate.
But the goal isn’t just raising a number.
It’s creating an environment where progesterone can function properly.
The Bigger Picture
When progesterone improves and GABA stabilizes, women often notice:
Deeper sleep
Less anxiety
Better stress tolerance
Improved mood
Smoother cycles
It’s not dramatic overnight.
But it’s steady.
And it changes how you move through your days.
Frequently Asked Questions
Can low progesterone cause anxiety?
Yes. Progesterone supports GABA, which has calming effects on the nervous system. When progesterone drops, anxiety can increase.
Can low progesterone cause insomnia?
Yes. Lower progesterone can make it harder to fall and stay asleep due to its relationship with GABA and cortisol balance.
Should I just take progesterone?
It depends. Progesterone therapy can help many women, but underlying stress, thyroid issues, and metabolic health also need to be addressed.
If you’re reading this thinking, “This is exactly what’s happening to me,” please know you’re not imagining things and you’re not crazy. This is a very real thing and often the first signs of perimenopause-related hormone shifts.
If you’re looking for help connecting your health history, your labs, your symptoms, and your story so you can feel more like yourself again — that’s what I do.
Because when progesterone stabilizes and sleep returns, everything else gets easier.
Note: As a health coach I am an educator, helping you learn to read them for yourself, identify patterns, and underlying dynamics that can be contributing factors in your health and how to, with diet and lifestyle changes, effect those pattens and dynamics in order to improve your health and increase your vitality.
The content in this post is for educational and informational purposes only and is not medical advice.
Sources
1. Progesterone and Sleep: A Review of Mechanisms and Clinical Implications
2. Neuroactive Steroids and GABA-A Receptor Modulation
3. Sleep Disturbance During the Menopausal Transition
4. Allopregnanolone and Anxiety Disorders
5. The Impact of Stress and Cortisol on Reproductive Hormones
