You've been crying at basically nothing. Snapping at the people you love. Waking at 3:07am like clockwork. The coffee that used to lift you now leaves you wired and twitchy. The exercise that used to feel like medicine now leaves you flattened for two days.
You go to your GP. Your bloods are "fine." You're told to drink more water, get more sleep, manage your stress.
You leave that appointment feeling slightly more unhinged than when you arrived.
If any part of that scene feels familiar, you're probably somewhere on the perimenopausal spectrum. Not in menopause. Not officially anything. Just in the strange, unnamed in-between where your body stops responding to the things that used to work.
Here's the thing that no one explains: your hormones are part of the story, but they aren't the whole story.
Perimenopause is the transitional window before your final period, lasting anywhere from 2 to 10 years. It typically begins in the late 30s or early 40s, though for some women it shows up earlier.
The 'official' symptom list reads like a grab bag: irregular cycles, sleep disruption, mood shifts, brain fog, anxiety, weight changes, libido drop, joint aches, hot flushes, heart palpitations, skin changes, gut symptoms, fatigue.
Most women don't experience this as a tidy list. They experience it as a slow, confusing unravelling. The dot-connecting moment, when the disparate symptoms finally line up under one diagnosis, often takes years.
In my naturopathic practice, women rarely arrived at the door saying "I think I'm in perimenopause." They came in with anxiety they couldn't shake. Skin that had stopped behaving. A gut that felt like a stranger's. A brain that clouded over at exactly the wrong moment.
What's actually shifting
Two hormones drive the perimenopausal experience, and they shift in ways most women aren't told about.
Progesterone usually drops first. As ovulation becomes inconsistent, progesterone production becomes inconsistent with it. Progesterone is calming. It supports sleep, mood, and the GABA receptors in the brain that quiet anxiety. When it drops, the system loses one of its most important brake pedals.
Estrogen fluctuates wildly before it eventually declines. This isn't a slow taper. It's a rollercoaster. High weeks, low weeks, sudden surges, sudden drops. The fluctuation itself is what drives many of the symptoms women report, including hot flushes, migraines, mood swings, and the heart-thumping anxiety that arrives with no clear trigger.
This is the hormone story. It's real, it matters, and it's only half the picture.
If you have ADHD, this can land earlier
There's a piece of this story that's only recently entered the research conversation, and it matters for a meaningful slice of women.
Women with ADHD often appear to experience perimenopausal symptoms earlier and more intensely than women without. Recent research suggests symptom onset can be up to a decade earlier, with peak severity landing between ages 35 and 39, compared to ages 45 to 49 in women without ADHD.
The mechanism is dopamine. Estrogen helps regulate dopamine activity in the brain. ADHD involves dopamine dysregulation. When estrogen begins to fluctuate, the brain takes a double hit: a system that was already running on a lower dopamine baseline now loses one of the modulators that helped keep it stable.
This is part of why so many women receive their first ADHD diagnosis in their late 30s or early 40s. It isn't that ADHD suddenly appeared. It's that the coping strategies, the masking, the structures, the sheer effort that held things together for two decades, stop holding. Fluctuating estrogen unmasks what was already there.
If you have ADHD and you've been wondering why everything has felt harder for the last few years, that wondering is biochemically reasonable. The framework in this article still applies. The timeline may simply have started earlier for you.
The piece that changes everything
Here's the part that most clinical conversations skip: when progesterone and estrogen shift, your body's stress system shifts with them.
Estrogen and progesterone don't only regulate the menstrual cycle. They influence the HPA axis, the body's central stress response system. They shape cortisol patterns, GABA activity, serotonin production, and your overall stress resilience.
When those hormones become erratic, your stress threshold drops. The same workload that you handled at 32 starts to feel impossible at 42. The argument with your partner that used to roll off now triggers a full nervous system meltdown. The school pickup leaves you shaking.
This is biochemistry.
Dr Jolene Brighten, board-certified naturopathic endocrinologist and author of Is This Normal?, describes perimenopause fatigue as a hormone-driven exhaustion caused by fluctuating estrogen and progesterone, disrupted cortisol patterns, and poor sleep quality. The cortisol piece sits inside the hormone picture. They're not separate stories.
Dr Carrie Jones (one of my absolute favourite hormone educators), who spent nearly a decade as Medical Director at DUTCH Test interpreting thousands of comprehensive hormone panels, points specifically to the loss of allopregnanolone (ALLO), a metabolite of progesterone, as a driver of perimenopausal anxiety and insomnia. ALLO crosses the blood-brain barrier and supports the GABA-A receptors. When you make less progesterone, you make less ALLO. When you make less ALLO, your nervous system loses one of its most powerful calming inputs.
That's the biochemistry behind the question women ask most: why am I suddenly so anxious?
What the leading research keeps saying
If you read across the work of the clinicians and researchers leading the perimenopause conversation right now, the same four pillars come up again and again.
1. Stress resilience is the lever
Dr Mariza Snyder, in her 2025 book The Perimenopause Revolution, frames perimenopause as a transition that demands a different relationship with stress. The body that powered through your 30s on caffeine, willpower, and four hours of sleep can't power through your 40s the same way. The same inputs produce different outputs. Your system is no longer absorbing what it used to.
Snyder names Ashwagandha specifically for its role in calming cortisol, and magnesium glycinate appears repeatedly across her work for nervous system support and sleep.
2. The gut is part of the story
Cynthia Thurlow NP, author of The Menopause Gut, argues that most of the symptoms women experience in perimenopause are an indicator of the health and vibrancy of the gut microbiome. The estrobolome, the collection of gut bacteria that helps metabolise and recycle estrogen, plays a meaningful role in how smoothly your hormones move through the system. When the gut is inflamed or imbalanced, the hormone story gets louder.
Thurlow also emphasises that stress tolerance drops in midlife women. The fasting protocols and food restrictions that worked in your 30s often backfire in your 40s, particularly when they pile onto an already taxed nervous system.
3. Strength is non-negotiable
Dr Stacy Sims, exercise physiologist and author of Next Level, has been one of the most consistent voices on what training should look like through this transition. Heavy resistance training two to three times a week. Sprint interval training to maintain metabolic flexibility. Adequate protein, around 1.8 to 2 grams per kilogram of body weight per day, to counter the anabolic resistance that emerges during the menopausal years.
Sims is explicit on one point that most women miss: training fasted, particularly with high intensity, drives cortisol higher. Fuelling appropriately around training is part of the stress story too.
4. Sleep is the foundation, not the indulgence
Across every expert, sleep keeps surfacing as the lever with the highest leverage. Sleep fragmentation, particularly the 3am wake-ups, is driven by progesterone decline, hot flushes, and cortisol patterns that lose their rhythm. Without sleep, every other intervention works less well.
Where the foundation gets built
The interventions with the most evidence behind them are not surprising. They're foundational. They're also more important now than they have ever been.
Sleep first. A consistent wind-down. A dark, cool room. Limited alcohol, especially in the second half of your cycle when ALLO is already low.
Strength training. Two to three sessions a week of progressive resistance. Heavy enough that the last few reps are genuinely hard.
Protein. Most women in perimenopause are eating well below what their body now requires. Aim for around 30 grams at each meal.
Daily stress regulation. Not as a weekend indulgence. As a daily input. Breathwork, walks, time outdoors, time in stillness. Your nervous system is now your weather, and it needs daily tending.
Hormone therapy, if appropriate. This is a conversation between you and a qualified prescriber. The shift in conversation around HRT in the last few years has been significant, and many women who would have benefited from it earlier are finally getting access. It's a personal decision, made with proper medical guidance.
Where supplementation fits
Supplementation is not the foundation. The foundation is sleep, food, movement, and stress regulation. Anyone telling you otherwise is selling you the wrong thing.
But once those foundations are in place, targeted nutrients can make a meaningful difference, particularly the ones depleted by chronic stress.
Magnesium glycinate. Repeatedly named across the perimenopause literature for nervous system support. Dr Brighten points to magnesium for anxiety, sleep, and cortisol regulation. The glycinate form is the one most often recommended for nervous system effects because of its bioavailability and its calming, low-laxative profile.
Ashwagandha. Snyder names it for its role in calming cortisol. The form, dose, and standardisation matter. Whole plant standardised extracts contain the full spectrum of the plant's adaptogenic compounds, rather than a single isolated fraction.
Taurine and glycine. Both function in the nervous system. Glycine is primarily an amino acid that also acts as an inhibitory neurotransmitter, supporting calm and sleep quality. Taurine plays a role in nervous system regulation and cardiovascular function.
B vitamins. B vitamins are foundational for energy production, neurotransmitter synthesis, and stress response. B2 (riboflavin), B12 (methylcobalamin), and folate (5-MTHF) in their activated forms are easier for the body to use, particularly for women with MTHFR variants who don't methylate efficiently.
Vitamin C. Some of the highest concentrations of vitamin C in the body sit in the adrenal glands. When the stress system is firing constantly, vitamin C gets used faster than usual.
These nutrients don't replace the foundation. They support it.
A note on Adapt
Adapt was formulated for the woman whose body has stopped responding to the inputs that used to work. The wired-and-tired woman. The 3am-wake-up woman. The woman who has read the books, started the breathwork, picked up the heavier weights, and still feels like she's running on a battery that won't quite charge.
It contains the nutrients above in a single, delicious daily drink. Ashwagandha extract. Magnesium glycinate. Taurine. Glycine. Vitamin C. B vitamin complex. Pineapple coconut flavour, Australian-made, third-party tested, TGA approved.
Adapt is clinically formulated to support the body during periods of stress. It is not a treatment for perimenopause, a hormone balancer, or a replacement for medical care. It is a foundation tool, designed to sit alongside the other foundations, not replace them.
If your stress system feels like it's running the show, Adapt is the daily input I built for that exact problem.
The shift that changes everything
Most women describe the same thing about perimenopause: a quiet sense that their body has become a stranger. The same routines stop working. The same inputs produce different outputs. The version of yourself you knew at 32 is no longer the version showing up at 42, and no one prepared you for that.
The shift, when it lands, is this: perimenopause isn't something happening to you. It's a recalibration, asking you to listen differently. To feed your body more. To rest your body more. To move your body in ways it now needs. To support your stress system before it stops being able to support you.
Pick the one shift that the previous version of you would have called optional. The sleep one. The protein one. The lifting one. The stress one.
Start there. Start today.
Adapt is the daily formula clinically designed for the foundation: stress resilience. Ashwagandha. Magnesium glycinate. Taurine. Glycine. Vitamin C. B vitamins. One scoop, every day.
Tegan Marshall is a qualified naturopath (BHSc Naturopathy, Adv. Dip. Naturopathy), and the founder of Glowable. This article is educational and is not a substitute for individualised medical or naturopathic advice. If you're navigating perimenopause, work with a qualified practitioner who can assess your full picture.