Autoimmunity and Perimenopause: Why Symptoms Get Harder to Manage After 45, with Dr. Aimie Apigian
Episode 195. A solo episode of The Biology of Trauma® podcast with Dr. Aimie Apigian.
Autoimmune symptoms get harder to manage in perimenopause because three things shift at the same time, and each one is invisible on its own. The immune baseline was set decades earlier, estrogen stops declining in a straight line and starts swinging, and the system that restrains inflammation stops being heard.
That last one is why a lab result can say you are fine while you are getting worse. Cortisol is one of the most powerful anti-inflammatory signals your body makes, and early adversity can leave the receptors that read it less responsive. The all clear gets sent and never lands.
Perimenopause does not create the autoimmunity, and it does not create the pattern. It removes the margin that had been holding the pattern quietly, which is why it feels sudden and why treating it as new keeps missing.
In this solo episode of the Biology of Trauma® podcast, Dr. Aimie Apigian, MD, MS, MPH, walks through the mechanism where autoimmunity and perimenopause intersect, translates the research into language you can use with your own provider, and explains what has to be stabilized before anything else will hold.
Autoimmune symptoms become harder to manage in perimenopause because three layers move together. The immune system was primed in childhood. Estrogen, an instruction set the immune system has read for decades, becomes unpredictable. And cortisol resistance means a normal lab result can be a false negative. Perimenopause removes the margin that had been holding a pattern already running.
Why do autoimmune symptoms get worse in perimenopause?
Because three separate systems change at once, and the change is additive. The immune baseline was set long before this decade. Estrogen, which has been giving the immune system daily instructions, becomes unpredictable. And cortisol, the body's brake on inflammation, stops being received even while more of it is produced.
Any one of those alone might be absorbed. Together they remove the reserve that had been holding a pattern quietly for decades.
What is estrogen actually instructing your immune system to do?
Estrogen is an immunologic messenger, and the immune system has been reading its instructions daily for decades.
From Fairweather and colleagues in the Journal of Clinical Investigation, September 2024, estrogen promotes B cell activation, survival and antibody production. B cells make antibodies, and antibodies are part of how the immune system holds memory. Estrogen reduces expression of AIRE, the autoimmune regulator, one of the mechanisms that trains the immune system not to attack its own tissue. It expands regulatory T cells, whose job is to brake an immune response before it overshoots. And it shifts the balance between two arms of immunity depending on the dose.
Four separate control points. Estrogen is sitting at four switches at once, which is why a change in estrogen is a change in immune instruction rather than a change in mood.
Why does unpredictable estrogen cost more than declining estrogen?
Because change is a stress, and unpredictable change is a larger one.
Follicle stimulating hormone rises while estradiol declines, with the sharpest movement around the final menstrual period. Estradiol is the main estrogen. FSH is the signal the brain sends when it is not getting the response it expects. So one climbs while the other falls, which Dr. Aimie describes as the brain calling louder into a room that does not have the estrogen to answer.
But estrogen in perimenopause does not decline in a straight line. It swings. The immune system is not receiving one new instruction and adapting to it. It is receiving a different instruction every few weeks. A nervous system already primed to read change as one more bad thing about to happen has no predictability to rest on.
Perimenopause, as used in this episode: the transition years during which estrogen becomes unpredictable rather than simply lower. The instability is the active ingredient, and it is what the immune system is responding to.
Why can a cortisol test come back normal when inflammation is getting worse?
Because the cortisol is present and the receptors have stopped responding to it. Early adversity produces lasting changes in the stress axis, and one of them is glucocorticoid resistance, mapped out in a 2026 review in the Journal of Neuroinflammation.
Dr. Aimie draws the comparison to insulin resistance. The cells have receptors meant to listen to insulin. In insulin resistance those receptors stop responding, insulin binds and nothing happens, and the body compensates by making more. The same shape applies to cortisol. The level goes up because the message is not landing.
Which explains a result that otherwise makes no sense in this decade. Cortisol rises progressively from the early menopausal transition through the late transition, then falls in early postmenopause. There is more cortisol present through exactly the years when many women feel worst.
Glucocorticoid resistance: glucocorticoid is the family name for cortisol. Resistance means the receptors that are supposed to receive the message have stopped responding to it. A test can show adequate or high cortisol while the anti-inflammatory instruction it carries never arrives.
When was the immune baseline actually set?
Long before perimenopause, and the research points at early adversity raising susceptibility rather than causing disease.
Three different kinds of evidence point the same direction. Dube and colleagues, in Psychosomatic Medicine in 2009, followed 15,357 adults in the Kaiser Permanente system. Compared with people reporting no adverse childhood experiences, people with two or more carried a 70 percent higher likelihood of hospitalization for one immunopathology grouping, 80 percent for another, and twice the likelihood for the rheumatic diseases. Song and colleagues, in JAMA in 2018, found a hazard ratio of 1.46 for any autoimmune disease among people with post-traumatic stress disorder specifically, and 2.29 for developing three or more. And a 2025 meta-analysis in Brain, Behavior, and Immunity pooled 27 studies, 8,728 autoimmune cases against more than three million controls.
Two things travel with that. The meta-analysis authors rated the certainty of their own evidence as very low, because of risk of bias in the studies they pooled. And lupus specifically showed no significant association.
What does a hazard ratio actually mean when you read it about your own health?
One rate divided by another. A hazard ratio of 1.46 means the rate was 46 percent higher in one group than in the other. It does not mean that 46 percent of anybody got sick.
The same correction applies to increased risk. Seventy percent more likely does not mean that seventy percent of those people became ill. It means their baseline chance, which was small, went up by seventy percent from there.
In the Swedish national registry study published in JAMA in 2018, autoimmune disease appeared at 9.1 cases per thousand person-years in the group carrying a stress-related diagnosis, and 6.0 in the group without one. Take a thousand people and follow them for a year: about nine in one group, about six in the other. The large majority of people in both groups did not develop anything.
Which number in that research matters most, and why?
The 2.29, not the 1.46. The signal is strongest for whether someone collects several autoimmune conditions rather than one.
That is the fingerprint of a whole system that has organized around survival, and it is why the midlife picture so often arrives as three diagnoses rather than one.
Does a high adverse childhood experience score predict what will happen to you?
No, and this is why Dr. Aimie stopped calculating them. The research tells us something true about populations and almost nothing useful about the individual person.
A score cannot say how much inner work someone has done, whether she has learned to create safety for herself rather than depending on other people, whether she can speak up, whether she has moved out of people pleasing, or what has already been addressed in her gut, her immune system and her toxic load. What she needs is a live reading of the survival pattern running today.
Why does an autoimmune diagnosis in midlife feel like it came out of nowhere?
Because by the time a diagnosis appears, the body has usually been organizing itself around something for a very long time.
Dr. Aimie opens with Elena, from chapter one of The Biology of Trauma. Elena was driving home on a Sunday morning when a car lost control on wet roads and came toward her. Her body did everything right, and then she could see none of it would work, and she froze. Afterward, on the ground, she noticed her body wanted to tremble, felt embarrassed, and stopped it.
Her physical injuries healed. She became more emotionally sensitive than she had been, snapped at her daughters, could not make that same drive without anxiety. A year later, after several emergency room visits for fatigue and swelling, she was diagnosed with lupus in her forties. For her it came out of the blue. Chapter seven covers how her immune system was primed long before the accident.
If it is not the pattern that changed at 45, what did?
The margin. Perimenopause does not create the autoimmunity, and it does not create the pattern. It removes the reserve that had been holding the pattern quietly.
The pattern was running at thirty. It was running at forty. There was enough reserve to absorb it, so it stayed underneath the surface of a life. What is new at forty five is the capacity, and the thing producing the symptoms is considerably older than that.
What has to be stabilized before capacity can be built?
Safety, first. Dr. Aimie takes the analogy from her general surgery residency: a patient arrives from an accident, bruised and broken, and the first move is not the deeper repair. It is the airway and the circulation. Stabilize, then repair.
A nervous system needs the same order. The fastest route she has found to that stabilization is a specific sequence of somatic exercises designed to produce a feeling of safe enough. If the work is not producing that feeling, it may be somatic work, and it is not the right kind for this phase.
Only after that does capacity building make sense. Tolerance for change, for grief, for what surfaces in this decade. Most people want to start there, with expansion, which is the last phase rather than the first. Her fuller treatment of that sequencing question is in Episode 194.
What can be done for the biology while the nervous system stabilizes?
Parts work and biological support, in that order, once safety is established.
Parts work stops the internal war, the part that wants the salad and the part that wants the ice cream, each pulling against the other. Ending that internal argument is itself part of creating internal safety.
On the biology side, she names the fundamentals: mitochondrial support so cells can make better energy, magnesium, neurotransmitter support, and addressing the brain inflammation that is likely present with autoimmunity. Reducing brain inflammation alone helps create a biology that supports a nervous system trying to stabilize.
Key Takeaways
Autoimmune symptoms get harder to manage in perimenopause because three layers shift together rather than one.
Estrogen sits at four immune control points at once: B cell activation, AIRE expression, regulatory T cells, and the balance between two arms of immunity.
Unpredictable estrogen costs more than declining estrogen, because a body that cannot predict itself has to stay on guard.
Cortisol's day job is restraining inflammation. It is one of the most powerful anti-inflammatory signals the body makes.
Glucocorticoid resistance means a normal or high cortisol may be present, but the message is being sent and not received.
Cortisol rises through the menopausal transition and falls in early postmenopause, so there is more cortisol present in the years many women feel worst.
In the Swedish registry, autoimmune disease appeared at 9.1 cases per thousand person-years in the exposed group and 6.0 in the unexposed.
The strongest signal in that data is not developing one autoimmune condition. It is developing three or more.
Perimenopause removes the margin rather than creating the pattern, which is why symptoms can appear to arrive suddenly.
Stabilization comes before capacity building. Expansion is the last phase, not the first.
Notable Quotes
"By the time a diagnosis shows up for us, our body, our biology, has been organizing itself around something for a very long time. We just haven't known it."
"Her past, the checklist of her past, does not tell me about who she is today."
“It's not the event from the past, it's the programming that is still running. That is what we could call ‘stored trauma.”
"Your brain is calling out louder... into a room that doesn't have the estrogen to be able to respond."
"A body that cannot predict itself is a body that needs to stay on guard and be hyper-vigilant."
"The cortisol is present. The receptors have stopped listening."
"The brake pedal is being pushed, but the pads are worn and it's not working as well."
Episode Takeaway
I have my own history of autoimmunity, and I have spent years watching what happens to women in this decade. What I keep seeing is a woman who is doing everything she was told to do, whose labs keep coming back acceptable, and whose symptoms keep getting harder to hold. She has usually arrived at one of two conclusions. Either there is something wrong with her that nobody has found yet, or there is something wrong with how she is handling it. I want to offer a third.
Three things are changing at once, and each of them is invisible on its own.
The first was set long before this decade. The research on childhood adversity and autoimmunity is real, and I want to be precise about what it says: early adversity raises susceptibility, it does not cause disease. What that means in a body is a nervous system that learned early that threat was the baseline, and an immune system that has been taking its instructions from that nervous system ever since. That is what I mean by stored trauma. Not the event. The programming still running, and the internal state it keeps producing.
The second is estrogen, and I think this is the piece most women have never been told. Estrogen is not only a reproductive hormone. It is a messenger the immune system has been reading every day for decades, and it sits at four control points at once. In perimenopause it does not decline in a straight line. It swings. So the immune system is not adapting to one new instruction. It is receiving a different one every few weeks. Change is a stress to a nervous system. Unpredictable change is a larger one. A body that cannot predict itself is a body that has to stay on guard.
The third is the one that makes the least sense until you see it. Cortisol restrains inflammation, and cortisol actually rises through this transition. So why does anything get worse? Because of resistance. You have probably heard of insulin resistance, where the receptors stop listening and the body compensates by making more. The same thing happens with cortisol. The all clear is being sent and it is not being received, and a lab result can look adequate or even high while none of that message lands.
Hold those three together and you get the line this episode turns on. Perimenopause does not create the autoimmunity. It does not even create the pattern. It removes the margin that had been holding the pattern quietly, which is why it feels sudden, and why treating it as new keeps missing.
Which changes the question. Not what is wrong with me, and not what am I doing wrong. The question is which survival pattern is driving my version of this, because the first step is not the same for every woman.
And the first step is smaller than most people expect. When a patient came into the emergency room during my general surgery training, we did not start with the deeper repair. We stabilized the airway and the circulation first. A nervous system needs that same order. Stabilize, with a sequence of somatic work that actually produces a feeling of safe enough. Then build capacity. Then the parts work that ends the internal war, and the biology underneath it: mitochondria, magnesium, neurotransmitters, and the brain inflammation that so often travels with autoimmunity.
That order does not change with age. Whether you start at twenty five or at forty five, safety comes first, because safety is what makes everything after it possible.
Frequently Asked Questions
Does perimenopause cause autoimmune disease?
No. Perimenopause does not create the autoimmunity and does not create the underlying pattern. What it removes is the biological margin that had been compensating for a pattern already running, which is why symptoms can appear to arrive suddenly in a body that has been organizing around something for decades.
Why do my autoimmune symptoms get worse in perimenopause when my labs look fine?
Because two of the three changes do not show on a standard panel. Estrogen instability is a change in immune instruction rather than a number outside a range, and glucocorticoid resistance means cortisol can read adequate or high while the anti-inflammatory message it carries is not being received.
Can a cortisol test come back normal when cortisol is not doing its job?
Yes. Glucocorticoid resistance means the receptors that read cortisol have become less responsive, so the level in the blood can be adequate or even elevated while the instruction it carries is not landing. A number within range tells you the signal is present. It does not tell you the signal is arriving.
Is this the same thing as adrenal fatigue?
No. Adrenal fatigue describes an adrenal gland that cannot produce enough cortisol. What Dr. Aimie is describing is the opposite shape: cortisol is being produced, and often more of it, while the receiving end has stopped responding. It is worth reading alongside Episode 168, where she makes the case that adrenaline sits upstream of cortisol.
How can an autoimmune diagnosis arrive in my forties with no warning?
A diagnosis is where a long process lands, not where it begins. The immune baseline is typically set much earlier, and the priming can run quietly for decades while there is enough reserve to absorb it. Elena, the case from chapter one of the book, was diagnosed with lupus in her forties and experienced it as coming out of the blue.
Does a high number of adverse childhood experiences mean I will develop an autoimmune condition?
No. The research establishes raised susceptibility across populations, not individual prediction, and the authors of the 2025 meta-analysis rated the certainty of their own evidence as very low. This is why Dr. Aimie stopped calculating adverse childhood experience scores.
What should I work on first?
Stabilization, before capacity building. In practice that means somatic work that actually produces a felt sense of safe enough, rather than work that is somatic in form but does not create that feeling. Expansion and resilience are the last phase, and most people try to start there.
Where do magnesium, mitochondrial support and brain inflammation fit?
They belong in the biology layer that supports a nervous system while it stabilizes, alongside neurotransmitter support. Dr. Aimie names them as fundamentals rather than as a protocol, and notes that reducing brain inflammation on its own helps create a biology that makes stabilization possible.
In This Episode
00:00 - What did perimenopause actually change?
01:11 - Who is Elena, and why does her story start this episode?
01:50 - Why does lupus show up differently across a woman's life?
02:14 - When was your immune baseline actually set?
03:10 - What does increased risk really mean?
03:53 - What is a hazard ratio, in plain terms?
04:29 - Which finding in the research matters most?
05:23 - Why did Dr. Aimie stop calculating ACE scores?
07:54 - What is estrogen instructing your immune system to do?
12:29 - Why swinging estrogen is the real stressor
13:55 - Why your cortisol test can mislead you
16:40 - What has to be stabilized first?
17:27 - Parts work and biology
19:25 - Where to start
Resources and Guides
Take the free 2-Minute Assessment for Stored Trauma. Twelve questions, no history required. Find the survival pattern running now.
The Biology of Trauma by Dr. Aimie Apigian. Chapters nine and ten cover the survival patterns referenced in this episode. Chapters one and seven carry Elena's story.
The Foundational Journey, the entry point into the Biology of Trauma® work.
Related Podcast Episodes
Episode 168: The Biology Behind Hormones, Trauma and Menopause — for the listener who wants the hormone layer on its own, including the case that adrenaline sits upstream of cortisol.
Episode 175: What Fear Does to Your Immune System — autoimmunity is one of four ways an immune system adapts to a nervous system living in fear. This is the wider map.
Episode 194: Why Trauma Work May Not Be Your First Step — for anyone who heard the stabilize-before-expand sequence and wants the full version of how that decision gets made.
Your Host
Dr. Aimie Apigian, MD, MS, MPH is a double board-certified physician in preventive medicine and addiction medicine with master's degrees in biochemistry and public health. She is the author of The Biology of Trauma, the founder of Trauma Healing Accelerated, and the creator of the Biology of Trauma® framework. She guides self-help individuals and trains practitioners in safely opening up stored trauma that has become biology. Her work came out of her own experience of being a physician with stored trauma she did not recognize as trauma.
Research
Dube SR, Fairweather D, Pearson WS, Felitti VJ, Anda RF, Croft JB. Cumulative childhood stress and autoimmune diseases in adults. Psychosomatic Medicine. 2009;71(2):243–250. doi:10.1097/PSY.0b013e3181907888 https://pubmed.ncbi.nlm.nih.gov/19188532/
Song H, Fang F, Tomasson G, et al. Association of Stress-Related Disorders With Subsequent Autoimmune Disease. JAMA. 2018;319(23):2388–2400. PMID 29922828
Jesuthasan J, Watson CJ, Hafeez D, Lynch-Kelly K, Danese A, Pollak TA. Childhood adversity as a risk factor for autoimmune disease: A systematic review and meta-analysis. Brain, Behavior, and Immunity. 2025;128:643–653. PMID 40320015
Fairweather D, Beetler DJ, McCabe EJ, Lieberman SM. Mechanisms underlying sex differences in autoimmunity. Journal of Clinical Investigation. 2024;134(18):e180076. doi:10.1172/JCI180076 https://pubmed.ncbi.nlm.nih.gov/39286970/
Luo L, Li L, Wang X, Bai W. The multisystem impact of perimenopausal hormonal fluctuations on chronic disease risk. Frontiers in Endocrinology. 2026;17:1894588. doi:10.3389/fendo.2026.1894588 https://doi.org/10.3389/fendo.2026.1894588
Liu Z, et al. Neuroimmune programming of childhood trauma: comorbid mechanisms and developmental origins of depression and autoimmune diseases. Journal of Neuroinflammation. 2026;23:182. doi:10.1186/s12974-026-03810-6 https://doi.org/10.1186/s12974-026-03810-6
Transcript
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