Your hormones might be running your AuDHD

By Lotta Borg Skoglund, author of Female Hormones and ADHD: The Impact on
Brain and Body (Jessica Kingsley Publishers, 2026)

There are question I have heard from hundreds of women and girls over the years, asked in consulting rooms, in online communities, and in the frequent messages I get in social media:

“Why does my life fall apart before my period? Why did I completely lose myself after having my baby? Why does nobody know anything about how hormones affect my brain?”

These are not just rhetorical questions. They are also my precise clinical observations. For too long however, the women asking them were told they were imagining it, overreacting, or simply needed to manage their stress better.

Here is what most psychiatrists never tell you: estrogen directly supports the function of neurotransmitters that are closely associated with both ADHD and autistic (AuDHD) traits and symptoms. It stimulates dopamine release, inhibits the enzyme that breaks it down, and enhances dopamine receptor binding in the brain. It also affects serotonin, norepinephrine, and acetylcholine, the full set of neurochemicals involved in mood, attention, memory, perception, sensory experiences and impulse control.

In other words, estrogen acts as a partial, natural buffer for many of the neurochemical difficulties that underlie AuDHD.

Now consider what happens when estrogen fluctuates. It rises in the first half of the menstrual cycle, peaks just before ovulation, and levels out in the premenstrual phase. It crashes in hours after childbirth and declines, first erratically, and then permanently, through perimenopause and menopause. All of these changes are neurological events, not just reproductive ones. For a brain that is already struggling with self-regulation, these hormonal changes have real, and measurable consequences.

In the premenstrual phase, the week or two before both estrogen and progesterone fall to trigger the bleeding, many AuDHD women and girls experience how every day life becomes harder. Focus deteriorates. Emotional regulation frays. Sleep worsens. Tasks that felt manageable two weeks ago feel impossible. Women using ADHD or antidepressant medications suddenly find that they are not working as well.

Progesterone plays a role here too. Its breakdown products act on the same system targeted by sedatives and anti-anxiety medications, and in sensitive individuals (i.e., neurodivergent girls and women), this may disrupt mood regulation severely. The result can be premenstrual syndrome (PMS) or, in its most severe form, premenstrual dysphoric disorder (PMDD) — a condition that can make normal functioning impossible and cause significant suffering. AuDHD women appear to be disproportionately affected.The cruel irony is that PMDD symptoms (emotional dysregulation, poor concentration, sensory overload and rejection sensitivity) may look almost identical to ADHD and autistic traits. So they are often attributed to the ADHD or autism itself rather than recognised as a separate, hormonally driven and potentially treatable condition sitting on top of it.

Autistic girls specifically, often carry significant emotional and sensory regulation challenges at baseline. A premenstrual hormonal shift layered on top of those can look like escalating behavioural difficulties, meltdowns, school refusal, or shutdown. The adults around them often have no idea that what is actually happening is biology.

Puberty can be a turbulent time for many reasons. For adolescent AuDHD girls, the sharp hormonal fluctuations of early menstrual cycles, in a brain that is still actively developing, can push previously masked difficulties above the threshold of visibility for the first time. Many girls first come to clinical attention in adolescence, not because their AuDHD has suddenly appeared, but because the hormonal pressure has finally cracked their compensatory strategies. They are treated for anxiety, depression, or eating disorders. All, while their underlying AuDHD goes undetected.

The pregnancy and postpartum period is perhaps the most dramatic hormonal transition a woman will ever experience. After childbirth, estrogen and progesterone fall from the unprecedented high levels, to near-zero within hours or days. For a brain already managing a vulnerable neurotransmittor system, the withdrawal of that hormonal support can be devastating. Our research confirms that ADHD women have a dramatically increased risk of postpartum depression, anxiety and suicidal ideation. Clearly, AuDHD women are a population that urgently needs to be identified and supported in perinatal care. Still, they are often left to figure this existentially acute situation out for themselves.

For many women, perimenopause, the transition period at the end of the female reproductive life which often lasts several years and during which estrogen begins to decline, is when everything they have been quietly compensating for throughout adulthood suddenly becomes impossible to hide.

To further confuse both women and clinicians, estrogen does not decline in a straight line during perimenopause. Rather, it fluctuates wildly, sometimes reaching levels as high as during late puberty, before crashing unpredictably low. Memory, sleep, word-finding, planning and emotional regulation can deteriorate noticeably. PMS symptoms that were manageable earlier in life often worsen significantly. Heavy periods that cause iron deficiency, may further amplify difficulties.

At menopause itself, estrogen levels become permanently low. For neurotypical brains, this is challenging. For AuDHD brains, already working on the maximum of their cognitive capacity, the consequences can be severe. Memory failures, brain fog, emotional dysregulation, and executive dysfunction are common menopausal symptoms that map almost exactly onto AuDHD stress-related issues. Women without a prior diagnosis are sometimes assessed for the first time in their fifties, because the hormonal buffer that was quietly compensating has finally been removed.

Autistic Girls Network understands better than most that autistic girls present differently, that “she seems fine” is not a reliable indicator of a girl’s internal experience. I want to add a layer to that understanding: sometimes “she seemed fine” last week but not this week because her hormones have shifted!

Masking is cognitively expensive. It depletes exactly the executive resources that are also compromised by ADHD and autism. When you add significant hormonal fluctuation to a brain already working at maximum capacity just to ‘pass’ as neurotypical, the consequences can be acute and fast. Premenstrual weeks, the postpartum period, and perimenopause are particular flashpoints for AuDHD women, because their neurological margin becomes narrower.

Track the cycle. Whether you are a parent, educator, clinician, or supporting yourself, start noticing whether the most difficult periods correspond to specific phases of the menstrual cycle. If the hardest weeks are consistently premenstrual, that is important clinical information that deserves to be acted on.

Name the connection. Many girls and women have never been told that estrogen supports dopamine, or that the premenstrual drop might be causing difficulties. Naming this shifts the story from “I can’t cope” to “my brain chemistry has changed this week.” That is a very different kind of story, one with agency in it.

Demand better from healthcare. AuDHD women need clinicians who ask about the menstrual cycle as part of standard assessment. Perimenopausal women who present with worsening cognitive function or emotional dysregulation may need to be assessed for ADHD and autism, not just offered antidepressants. Postpartum AuDHD women deserve a mental health plan, not a discharge and a hope.

AuDHD girls and women are diagnosed several years later than males. Those years carry a weight of accumulated misdiagnoses, shame, and preventable suffering. Understanding the hormonal dimension of AuDHD does not solve that injustice, but it hands women and girls something powerful: an accurate explanatory model. One that says your biology is real, your experience is real, and you deserve care that reflects both.

If this blog resonates with you, our book “Female Hormones and ADHD – The Impact on Brain and Body” takes you much deeper. Dr. Helena Kopp Kallner is a gynaecologist; I am a psychiatrist and a GP. Between us, we cover the three clinical worlds that AuDHD women most need to speak to each other, but so rarely do. This book grew directly from our shared research and clinical work, and from years of meeting women who had been passed between specialities without anyone ever connecting the dots for them. Through the lives of five girls and women — Lou 11, whose hidden struggles are beginning to crack her bright, effortful surface; Anja 16, whose emotional volatility spikes with brutal predictability in her premenstrual weeks; Linda 32, navigating PCOS, disordered eating and the cognitive load of raising a child whose brain mirrors her own; Mia 47, whose decades-long coping strategies are suddenly failing as perimenopause arrives; and Ella 64, looking back on patterns that finally, painfully, make sense — we follow the full arc of the female reproductive lifespan, showing at every stage how hormonal shifts interact with the ADHD brain in ways that are real, measurable, and far too rarely explained.

Lotta Borg Skoglund is a physician, researcher, and Associate Professor of Psychiatry at Uppsala University and Karolinska Institutet, and founder of SMART Psykiatri. Her new book, Female Hormones and ADHD: The Impact on Brain and Body*, co-authored with Dr Helena Kopp Kallner, is published by Jessica Kingsley Publishers in 2026.*