In a hurry? The short version
A note before anything else: I am a counselling psychologist, not a medical doctor. I cannot prescribe, and nothing here is medical advice or a recommendation to start or stop any treatment. It is background — the kind of orientation that helps you have a better-informed conversation with your GP or a menopause specialist, who are the people who can actually weigh this for your body and your history. Where I mention specific treatments, I am describing what the guidelines and research say, not telling you what to take.
With that said: I see a particular story often enough to write about it. A woman in her mid-forties, who has held a complicated life together for decades, finds that the wheels are quietly coming off. The focus that was always effortful but possible is now just gone. She is exhausted, tearful, anxious in a way that does not match her circumstances, not sleeping, losing words mid-sentence, and increasingly convinced she is losing her mind. Sometimes she already has an ADHD diagnosis and her usual strategies have stopped working. Sometimes the chaos of perimenopause is the thing that finally makes lifelong, masked ADHD undeniable. Either way, two things are happening at once, they share a mechanism, and almost nobody has joined them up for her.
What perimenopause actually is
Menopause is a single day: twelve months after your last period. Perimenopause is the transition leading up to it — the years in which the ovaries' production of estrogen and progesterone becomes erratic and then declines. The defining feature is not low hormones so much as fluctuating ones: estrogen can swing high and low unpredictably from one week to the next, which is part of why the symptoms are so changeable and so destabilising.
The average age of menopause in the UK is around 51, and perimenopause commonly begins in the mid-forties, though it can start earlier. It varies widely from woman to woman: the perimenopause itself can run for up to around ten years, and menopausal symptoms overall typically last about seven to nine years. Crucially, you can be deep in perimenopause while still having periods — even regular ones — and while standard blood tests look "normal." Many women are told they are too young, or that their bloods are fine, and are sent away. Current UK guidance is explicit that in women over 45 with typical symptoms, perimenopause and menopause should be diagnosed on the symptom picture, without a blood test, because hormone levels fluctuate too much to be reliable.
The symptoms: far more than hot flushes
Most people associate menopause with hot flushes. They are common — affecting around three-quarters of women — but they are only one item on a long list, and for many women they are not the worst of it. Estrogen receptors are found throughout the body and brain, so when estrogen falls the effects are felt almost everywhere.
Vasomotor
Psychological and emotional
Cognitive — the "brain fog"
Sleep
Physical
Genitourinary (often arriving later and getting worse over time)
Menstrual
Two features make this hard to recognise. First, the symptoms are diffuse and easy to attribute to something else — stress, ageing, a hard year, a mental-health problem. Second, because estrogen fluctuates, the symptoms come and go, so it never quite settles into an obvious pattern. A great many women spend the early perimenopausal years being treated for anxiety or depression alone, when a hormonal driver is sitting underneath.
Why perimenopause hits the brain so hard
The cognitive and emotional symptoms are not imaginary, and they are not simply a reaction to feeling unwell. Estrogen is a neuroactive hormone. It modulates several of the brain's key chemical messengers — including dopamine, serotonin, noradrenaline, and acetylcholine — and it supports the brain regions involved in memory and executive function. When estrogen is plentiful, it tends to boost dopamine signalling; when it falls or swings, that support becomes unreliable.
Dopamine is the piece that matters most for what follows. It is central to attention, motivation, working memory, and the brain's ability to prioritise and follow through — exactly the functions that go offline in "brain fog," and exactly the functions that are already vulnerable in ADHD.
Where ADHD comes in
ADHD is, in part, a condition of dopamine regulation. So if estrogen helps prop up dopamine, and perimenopause pulls that prop away, you would predict that women with ADHD would be hit harder than most — and that some women who coped for years would find their coping collapse. That is broadly what clinicians who work in this area describe, and it fits the mechanism.
Some of the strongest indirect evidence comes from the menstrual cycle. ADHD symptoms in women are known to vary across the month, tending to worsen in the days before a period, when estrogen is low. Perimenopause is, in a sense, that low-estrogen state becoming the new baseline — except erratic rather than cyclical. Women report that previously workable systems stop working, that emotional regulation gets dramatically harder, and that, for those on stimulant medication, it can feel less effective than it used to.
I want to be honest about the state of the evidence here, because this is an area where enthusiasm has run ahead of research. The mechanism — estrogen's effect on dopamine, and dopamine's role in both attention and ADHD — is well established. The menstrual-cycle fluctuation of ADHD symptoms is supported by a growing body of work. But high-quality studies looking specifically at perimenopause and ADHD, and at whether HRT improves ADHD symptoms, are still thin on the ground. The most recent systematic reviews and cohort studies treat this as a real but early field — for example, a 2025 population study found women with ADHD report more severe perimenopausal symptoms, but it relied on self-reported ADHD and shows association, not proof that perimenopause worsens ADHD. Much of what is said confidently online is extrapolation. It is a very plausible, mechanistically-sound extrapolation, and it matches a great deal of clinical experience — but it is not yet the same thing as proof, and you deserve to know which is which.
One thing that is increasingly recognised: ADHD has been historically under-diagnosed in girls and women, partly because women more often present with inattentive rather than hyperactive symptoms and learn to mask. For many, the perimenopausal loss of cognitive reserve is the event that finally makes lifelong ADHD impossible to mask or ignore — which is why diagnosis in midlife has become so common. If you are reading this and recognising yourself in both halves, you are not imagining a connection that isn't there.
Is it perimenopause, ADHD, or both?
The symptom lists overlap heavily — inattention, disorganisation, emotional dysregulation, restlessness, poor working memory, sleep problems — which is part of why this is so often missed or mislabelled. A few rough orienting questions can help you think it through before a clinical conversation:
You do not have to solve this yourself, and the answer is often "both, interacting." The practical point is that the two have different (and complementary) treatments, so it is worth pursuing both questions rather than assuming one explanation has to win.
HRT: what is actually available
Hormone replacement therapy replaces the hormones the ovaries are no longer reliably producing. Modern HRT is not the HRT of twenty years ago, and current UK guidance is clear that for most women with troublesome symptoms, started around the time of menopause, the benefits outweigh the risks. The current preference is for what is often called body-identical HRT:
HRT is a genuine decision with benefits and risks to weigh — including a nuanced and frequently-misreported picture on breast cancer — and that weighing depends on your personal and family history. That is exactly the conversation to have with a GP or menopause specialist. There are also effective non-hormonal options for women who cannot or prefer not to take HRT, including certain medications, a newer class of non-hormonal drug for hot flushes (such as fezolinetant), and — now formally recommended in UK guidance — cognitive behavioural therapy for menopausal symptoms.
A symptom checklist to take to your GP
Appointments are short, symptoms are easy to under-report when you are sitting in front of a busy GP, and the cognitive symptoms themselves make it hard to marshal your thoughts. The single most useful thing you can do is arrive prepared, with your symptoms written down. Dr Louise Newson's balance menopause resources are the ones I most often point people towards: the free balance app and website let you log your symptoms and generate a health report you can take to your appointment, and there is a downloadable symptom questionnaire designed for exactly this purpose.
Here is a practical version you can fill in beforehand. Note which apply, roughly how long you have had them, and how much they affect your daily life:
It can also help to write down, in advance:
You are entitled to ask for a longer or follow-up appointment, to ask to see a different clinician if you do not feel heard, and to ask for referral to a menopause specialist or NHS menopause clinic if your situation is complex. Bringing a written symptom record and a clear request changes the conversation considerably.
Testosterone and AndroFeme: an honest note
Testosterone is often the next question, and there is a lot of noise around it, so here is the careful version.
Women produce testosterone too, and levels decline with age. Historically there was no testosterone product licensed for women in the UK, so it was prescribed off-label — and many products (such as male testosterone gels used in small fractional doses) still are. That picture is changing: a female-specific product is reported to have received a UK licence in 2025, with wider availability expected during 2026 (more on that below). What has not changed is the evidence base, summarised in the international consensus position and reflected in British Menopause Society guidance: testosterone has good evidence for helping low sexual desire (where it is distressing) in postmenopausal women, but the evidence does not support prescribing it for low mood, fatigue, cognitive symptoms, or general wellbeing. It is normally considered only once estrogen replacement is already optimised, and it requires blood-level monitoring.
This matters for the ADHD question specifically: testosterone is not an established treatment for ADHD or brain fog. Some women report broader benefits, and research may yet expand the picture, but as things stand the honest position is that the cognitive case is not proven, and you should be wary of anyone presenting it as a fix for attention problems.
On the product itself: AndroFeme (a 1% testosterone cream made by Lawley Pharmaceuticals in Australia) is the one frequently described as the best option for women, and the logic behind that is reasonable — it is actually formulated and dose-calibrated for female physiology, whereas the products long used in the UK are male testosterone preparations dosed in small fractions. Having been licensed for women in Australia for several years, AndroFeme is reported to have gained a UK licence in 2025 — potentially the first licensed female testosterone product here — with wider UK availability expected during 2026; until it is routinely stocked it has typically been accessed privately. I would gently push back on the word "best", though: it is the female-formulated option, which is a genuine advantage, but the established off-label gels remain perfectly appropriate, and what is right depends entirely on the person. Whether testosterone is appropriate for you at all, in what form, and at what dose, is firmly a decision for a doctor — ideally a menopause specialist — with proper monitoring. I mention it only because you are likely to encounter the name and deserve an accurate, non-hyped account of where it does and does not have evidence.
Where psychology fits
Hormones are only one layer. Even with well-managed HRT, the perimenopausal years often coincide with a brutal life stage — ageing parents, teenagers, peak career demands, relationships under strain — and the collision of perimenopause and ADHD can shake your sense of who you are. Therapy will not replace estrogen, and I would never want it used as a substitute for proper medical assessment. But alongside the medical side, psychological work helps with the things HRT alone does not reach: rebuilding self-trust after a frightening loss of function, grieving an old way of coping, learning ADHD-friendly systems that fit a changed brain, and managing the anxiety and low mood that the transition stirs up. Notably, CBT for menopausal symptoms is now recommended in UK guidance in its own right.
References
This article is general information from a counselling psychologist and is not medical advice, diagnosis, or a recommendation to start or stop any treatment. Decisions about HRT, testosterone, or any medication must be made with a GP or menopause specialist who knows your history. If you are struggling with your mental health, please speak to your GP, or call Samaritans free on 116 123 at any time.