When Something Shifts — and No One Has an Answer
What perimenopause actually is, why it goes unrecognized, and what you can do.
There were stretches, last year, where my executive functioning was simply not what it used to be. I'm a physician — I've built a career on precision, on language, on holding complex clinical pictures in my head. And there were moments where a word I'd used a thousand times simply wasn't there.
I was eating an anti-inflammatory diet. Strength training, daily aerobic workouts, yoga, breathwork — all of it, consistently. I was doing work aligned with my purpose. And still — that blankness didn't fit any category I had for myself.
I was not burned out. I was not depressed. For a brief stretch, I genuinely wondered if I was looking at early dementia.
And then it clicked — I was in perimenopause.
That experience, combined with something my friend and colleague Dr. Rachel Rubin says often — that any physician who sees women as patients needs to know how to treat perimenopause and menopause, not just OB-GYNs — is what pushed me to go deeper into this work. This post is what I wish someone had handed me.
What perimenopause actually is
Perimenopause is the hormonal transition that precedes menopause — typically lasting four to ten years — during which estrogen fluctuates significantly before it eventually declines. It is distinct from menopause itself, defined clinically as twelve consecutive months without a period.
Because estrogen receptors are distributed throughout the brain, gut, cardiovascular system, and skin, the effects of those fluctuations are wide-ranging.
This is not your body malfunctioning. It is a transition it was designed to make — one that is considerably more manageable with the right clinical support.
Why perimenopause misdiagnosis is so common
Melinda French Gates recently wrote in The New York Times about a scene that plays out constantly: a woman walks into her doctor's office with sleep destroyed, joints aching, heart racing, memory slipping — and walks out with no diagnosis, no treatment, and no plan. It's not because physicians don't care. It's because most of medicine still isn't trained to look for this.
Much of this traces back to 2002, when the Women's Health Initiative trial's hormone therapy findings were widely misinterpreted. Hormone therapy was abruptly abandoned across the board, research into menopause care slowed, and an entire generation of physicians went through training with little to no education on how to recognize or treat this transition. We are still living with that gap today.
These women are not imagining their symptoms. They have not been helped.
Burnout or perimenopause?
I've written before about burnout as a metabolic phenomenon — the body losing its ability to convert input into energy. Sometimes that's exactly what's happening, and the fix is restoring the stress system.
But sometimes the depletion is not burnout. It's perimenopause. The two look identical on the surface — exhaustion, fog, mood instability — but one is a stress-system failure and the other is a hormonal transition. Treating one as the other means the right treatment never gets a chance to work.
Burnout
A stress-system failure. The body has lost its ability to convert input into energy. The fix is restoring the stress response.
Perimenopause
A hormonal transition. Fluctuating estrogen is driving the fog, fatigue, and mood shifts. The fix starts with recognizing the transition itself.
The cost is not abstract. The Society for Women's Health Research found two in five women have considered leaving — or have left — a job due to perimenopause or menopause symptoms, and one in four passed on a leadership opportunity as a result.
What brain fog and other symptoms actually look like
Perimenopause brain fog is the most frequently reported symptom. Between 44–62% of perimenopausal women report subjective cognitive decline — difficulty concentrating, word retrieval failures (El Khoudary et al., 2019; SWAN).
What women actually say sounds like this:
I lose words mid-sentence. Words I've always known.
I wake up at 3 AM completely alert and can't fall back asleep.
My anxiety feels physical — and nothing is actually wrong.
Each traces back to specific physiology: brain fog to estrogen's role in neural connectivity, early waking to declining progesterone, weight gain to estrogen's loss of influence over insulin sensitivity, palpitations to estrogen's effect on autonomic tone. These are not separate problems — they are one transition expressing itself across multiple systems.
How I actually think about treating this
Hormone therapy, when appropriate, is a significant part of good perimenopause care — not a footnote.
But it's one piece, not the whole picture. To get a woman to real, durable balance, I build around a framework — true whether or not hormones are part of the plan:
- Diet
An anti-inflammatory eating pattern that supports hormonal and metabolic stability.
- Movement
Strength training and regular aerobic movement to support insulin sensitivity and mood.
- Mind–body
Practices like yoga and breathwork to regulate the nervous system alongside hormonal shifts.
- Sleep rhythm
A real, protected sleep routine — often the first thing perimenopause disrupts.
This is where my practice stands apart from "here's your prescription, see you in a year." For women who cannot or choose not to take hormones — a choice I respect completely — evidence-informed options like acupuncture, botanicals, and clinical hypnosis deserve just as much clinical rigor as the hormonal path.
A dedicated perimenopause and midlife care program
Integrative medicine, thorough hormonal evaluation, and individualized treatment planning — launching in the coming months. If this resonates, I'd love to hear from you.
Book a discovery callFrequently asked questions
What is perimenopause, and when does it start?
Perimenopause is the hormonal transition before menopause, typically lasting four to ten years, beginning as early as the late 30s. Most women first notice symptoms in their early to mid-40s.
How is perimenopause different from menopause?
Menopause is one clinical milestone: twelve consecutive months without a period. Perimenopause is everything leading up to it — years of hormonal fluctuation, often while periods are still present.
What are the most common perimenopause symptoms?
Brain fog, disrupted sleep, early-morning waking, anxiety without a clear trigger, mood shifts, irregular periods, abdominal weight gain, low libido, and heart palpitations — many appearing years before women connect them to hormonal change.
Can perimenopause cause anxiety and depression?
Yes. As estrogen fluctuates, GABA receptor activity diminishes, producing physiological anxiety indistinguishable from a psychiatric disorder. 33% of perimenopausal women received an anxiety diagnosis and 27% a depression diagnosis before perimenopause was identified. (Biote, 2025)
How is perimenopause diagnosed?
Perimenopause is primarily a clinical diagnosis — based on symptom pattern and history, not a single lab value. ACOG and NAMS do not recommend routine hormone testing for diagnosis, since FSH and estradiol can appear normal even during active perimenopause. Lab work still has value — ruling out thyroid dysfunction, assessing metabolic health, evaluating androgens — but it's one input, not the answer.
How long does perimenopause last?
On average, four to ten years. Symptoms often intensify in the one to two years before the final menstrual period.
Can perimenopause be treated without hormones?
Yes. For women who choose not to pursue hormone therapy, or for whom it's contraindicated, integrative options — acupuncture, botanicals, clinical hypnosis, among others — offer meaningful relief. The right plan requires a proper clinical evaluation.
If you've been told your labs are normal when you know something is wrong, you are not imagining it.
This is the care I wish someone had handed me when I was the one losing words mid-sentence. You shouldn't have to go through it alone, or without answers.
Schedule a discovery callDr. Malathi Acharya, MD is a board-certified internist and Diplomate of the American Board of Integrative Medicine. She practices integrative medicine at Ayur in the Portola Valley / Bay Area area.