The three biological shifts of menopause

Most explanations of menopause end with what we’re missing.
This one ends with what we’re gaining.

Our bodies are built to run on three distinct codes across a lifetime. The menstrual years are one code — cyclical, ovarian-led, oestrogen-dominant and the foundation of fertility. Matrescence is the second code — organised around growing a baby, giving birth, and becoming a mother. Not every woman runs this code, and not every woman runs it to term, but the biology is designed for it. Menopause is the third and last code — a post-reproductive design in which the ovaries step back, and we step into our third life stage, the matriarchy.

Menstruation and matrescence each have a logical code. Each has its own hormonal organisation, its own fuel preference, its own emotional centre of gravity. In each design, symptoms appear when the design runs into something that blocks it: a depleted hormonal foundation, a hostile food environment, a culture that refuses to accommodate it.

Menopause is no different – it has a logical code, and the symptoms that are felt are the bugs when the code bumps up against real life.

The oestrogen deficiency story is a story, not a fact

The dominant medical story is not just that symptoms are the result of an oestrogen deficiency – but that menopause itself is a state of long-term hormone deficiency and not just oestrogen but testosterone and progesterone too. The Menopause Charity sticks to this definition even though the natural decline of oestrogen, leading to the permanent end of menstruation after 12 months, is the definition of menopause. This oxymoronic story has a history, grounded more in culture than science.

The concept of menopause semi-officially started in 1821, when a French physician coined the term la ménopause and turned a natural transition into a clinical stage, based largely on wealthy urban women already under strain from diet, sleep and lifestyle. It moved to an oestrogen deficiency disease in 1966, when American gynaecologist Robert Wilson published Feminine Forever, describing menopause as “living decay” curable by lifelong oestrogen therapy; later it was discovered that his foundation was funded by Ayerst, the manufacturer of Premarin, oestrogen used in HRT, extracted from PREgnant MAres’ uRINe.

Symptoms became the entire focus. Oestrogen was framed as the essence of femininity. Its decline became synonymous with deterioration of bones, heart, brain, skin and identity.

Once menopause was defined as an oestrogen deficit, it became possible and profitable to sell fear. Marketing campaigns amplified the risks of osteoporosis, heart disease, dementia, skin ageing and sexual decline. Prevention was framed as a duty: a good, responsible woman protected herself – and implicitly her partner and family – by taking hormones. Menopause became a risk identity: a permanent almost‑broken state, held together by medical products.

When the Women’s Health Initiative later showed increased risks of breast cancer, cardiovascular events and blood clots with combined HRT, prescriptions fell and panic set in. The later response was not to question the deficiency model, but to reformulate and rebrand the products: lower doses, “body‑identical” hormones, the timing hypothesis, the “window of opportunity”. The names changed. The story did not.

In recent years, supplement and wellness industries have flooded into the gap with “natural” ways to balance hormones and reclaim youth. The packaging switched to empowerment language – glow, thrive, ageless – but the core message stayed the same: your menopausal biology is inherently lacking and must be topped up from outside.

This is not liberation. It is patriarchal medicine wearing feminist lipstick:

• Replacement is still framed as salvation.
• Menopause is still narrated as loss.
• Oestrogen is still cast as the essence of femininity.

What the deficiency model gets wrong

The oestrogen deficiency model persists because it offers a story that fits a culture obsessed with youth and productivity. Biologically, it was wrong from the start.

It cannot explain:

• Why some women sail through menopause with minimal symptoms.
• Why symptoms often resolve spontaneously over time.
• Why some women get some symptoms and other women get different ones.
• Why entire populations of women experience menopause with no recognisable syndrome at all.

Most importantly, it ignores an obvious fact: a fall in ovarian oestrogen at midlife is normal, expected, and part of what the body is designed to do. It is not meant to be a malfunction.

By collapsing the entire architecture of menopausal biology into a single falling hormone, the deficiency story makes normal adaptation look like pathological decline, and makes the biological shifts that are meant to rise in oestrogen’s wake completely invisible. If we stay inside this frame, we can only ever ask the wrong questions: not “What is my body reorganising into?” but “How do I get my old hormone levels back?‘”; not “What new systems are coming online?” but “How do I maintain a quasi‑reproductive state forever?”

To ask better questions, we need a different story – one where menopause is not a failure, but an evolved transition with its own intelligent design.

Menopause is ancient.
The symptoms aren’t.

Menopause has been part of human female biology for at least 30,000 years. Archaeological evidence shows women living active lives into their 60s and 70s. In hunter‑gatherer communities such as the Hadza or the !Kung, post‑reproductive women are a normal, contributing part of the group. Evolution does not preserve expensive biology out of nostalgia. Older women were not surplus. They were essential.

So if menopause is ancient and deliberate, why does it feel like a crisis now?

In the 1980s, anthropologist Yewoubdar Beyene studied rural Mayan women in the Yucatán. They described the end of bleeding and not much else: no hot flushes, no “syndrome”, no brain fog or rage. When their hormones were measured, they looked just like Western women’s – low oestradiol, high FSH. The physiology was identical. The experience was not. Many described this phase as freedom; one called it being “young and free.”

Similar patterns show up in rural Greece, the Andes and among Inuit women: far fewer hot flushes and far less psychological distress than in urban Western settings, despite identical hormonal changes.

The decisive clue came when Mayan women migrated to cities and then developed hot flushes – a symptom that had been almost absent in their villages. Their hormones hadn’t changed. Everything else had: food, light, pace, stress, sleep, social fabric. The symptoms didn’t follow menopause; they followed urbanisation.

We can see then that the fall in ovarian oestrogen is universal, but the symptom storm is not.

So the questions that actually matter are not

“How low is my oestrogen?” and “How can I replace it?”

but:

“What is my body trying to do – and what is getting in the way?”

Three biological shifts, not one deficiency

Across hundreds of women, I have seen the symptoms fall into three clear biological shifts built into the menopause code – they are not a random scatter – and most women have a mix of all three. Each shift has a mechanism underneath it, specific root causes, and clear levers that shift it:

• The Energy Shift – how the brain fuels itself
• The Oestrogen Shift – how and where hormones are now made
• The Emotional Shift – what emotional life will and will not tolerate.

Thhis is a radical departure from the deficiency model, which blames symptoms on oestrogen falling and tells us it is because we are deficient — again. Instead, I place the shifts in an Adaptive model, with the understanding that there is no deficiency, that the menopause code evolved to protect our health span and lifespan for the decades ahead, and that symptoms are the consequences of the shifts being blocked. Identifying which shift is struggling is the first step from biological chaos to formulating a plan for resolving symptoms.

Unblocking the shifts: My MenoMorphosis Method

Knowing the shifts exist is only the first step. Their practical application has to be individualised, because every woman enters menopause with a specific set of biological variables — her constitution, her metabolic foundations, her medical history, her stresses, her ambitions for the decades ahead. The 3 shifts are the organising principles, the lens that I look through, as a starting point to finally reach a practical, individualised plan.

The MenoMorphosis Method is the clinical framework I have developed over a decade of focused, non-prescribing work in menopause. I worked it out with women who were willing to go through the trials and tribulations with me, try new approaches and monitor how they were responding. I stand on the shoulders of giants, ordinary women who committed to an unknown process and to getting to know themselves and their bodies in new ways. This work is ongoing, and every woman I work with has a part to play in expanding this field of knowledge and practice. I invite you to join in! The process of self-knowledge and discovery can be bumpy, but it is also joyful and gratifying, and on the other side, the world is a sunnier, safer, more confident place.

The method moves through four stages, and the name encodes them:

M — Map. Before we meet, I map your story — symptoms, history, nutrition, sleep, stress, prior labs. The pattern surfaces. The three shifts are read against your specific terrain to identify which is primary, which is secondary, and which is quieter.

E — Evaluate. In the initial consultation we work through what I have found, identify the shifts driving your symptoms, and decide whether advanced functional testing (hormone metabolism, mitochondrial function, microbiome mapping) would add clarity. You leave with a personalised plan.

N — Nourish. The plan you follow is organised around the foundations the shift depends on — nutritional, metabolic, microbial, mitochondrial, emotional — it gives your body what it needs, to do the reorganisation it is coded to do.

O — Optimise. In follow-up consultations every four to five weeks, we review what is working, refine what isn’t, interpret test results, and tune the plan to how your body is actually responding. In my clinic, the vast majority of women report a significant improvement in symptoms within 4 weeks of starting their plan, with deeper restoration over 3 months. By the end, at least 75% of your symptoms will have resolved and you will be able to read your own body’s signals, so you can go forth, confidently applying your knowledge to maintain your health, no matter what life brings.

What follows is Morphosis. Beyond symptom relief is your coded transformation. When the fuel switch completes, when local hormone production stabilises, when the nervous system stops sounding the alarm, what emerges is not the woman you were before, but a clearer, steadier version of who you actually are.

What about HRT?
HRT is hormone extension, not hormone replacement

For many women, HRT is the only effective option they are offered in mainstream care. That is real, and the relief many experience is real, despite all the faffing about with timings, dosages, bleeding and underlying fear. My work is not an argument against the women who have made that choice — it is an argument with the framework that named the intervention in the first place.

Hormone Replacement Therapy presupposes something is missing. The whole logic of replacement requires a deficit to be filled.

But we are not missing anything. The ovaries follow a planned shutdown and oestrogen reaches its lowest natural level – and it not possible to replace something that is not required.

In this scenario HRT is not a replacement – it is an extension. It keeps circulating oestrogen at below fertility level, but not low enough to be at menopausal level. It works to postpone the transition, keeping women in a limbo state.

The functional medicine approach does the opposite. It works with the shift that biology is already trying to make. It supports the foundations the new design depends on, and lets the body settle into the post-reproductive code it was built to run.

These are two fundamentally different clinical positions, and women deserve to choose between them with full information. As far as I am aware, I am the only practitioner in the UK who is trained as a functional medicine practitioner, who works exclusively in menopause, and who works non-hormonally — so the choice between the two routes is, in practice, a choice that women have to make with limited side-by-side information.

Women who have never used HRT and want a coherent non-hormonal route are the core of my practice. Women who want to come off HRT with a structured plan are welcome. Women who have come off HRT and are struggling are welcome

What we’re gaining is the beginning of a new era

What many women don’t realise is that there are enormous gains to be had when working with the shifts, rather than extending a smaller version of the system that came before. You discover, in the detail of the Energy, Oestrogen and Emotional Shifts, that our brains get stronger, not more fragile. That ovarian oestrogen stops, but its production shifts to the tissues of the body. And that the most felt consequence is the undeniable move from wanting a feeling of belonging, to a space of self-focused becoming. All of this is ours to take. Menopause stops being something that happens to you, and becomes something that happens for you.