Functional Medicine · Hormonal Health

The Journal

by Dr. Natasha Ryan, ND

Perimenopause · Focus & Cognition

ADHD and Perimenopause: Why Symptoms Worsen and What to Do About It

3 min read

She has always been organized, or at least she thought so. Now she loses her train of thought in meetings, misses deadlines she used to hit easily, and feels overwhelmed by tasks that were routine. She has started to wonder about ADHD. Her doctor says it is probably perimenopause. A friend with ADHD says it sounds exactly like her.

It could be either, and it could be both. This is a topic where the honest answer is that the evidence is early.

What the research shows

A 2025 population-based cohort study from Iceland, published in European Psychiatry, compared perimenopausal symptoms in women aged 35 to 55 with and without ADHD. Women with ADHD had higher total symptom scores across psychological, somatic, and urogenital symptoms, and about 54% reported severe perimenopausal symptoms compared with about 30% of women without ADHD. The gap was widest in the late 30s: symptoms peaked at ages 35 to 39 in women with ADHD and 45 to 49 in women without. The authors interpreted that as possibly indicating an earlier onset of perimenopause in ADHD.

There are real limits. The study was cross-sectional, ADHD was self-reported, symptoms overlap between the two conditions, and there was no information on treatment. A narrative review published in 2026 summarized the broader picture: hormonal changes in midlife can worsen ADHD symptoms and reduce treatment response, but it also noted that a systematic review had found no empirical studies of ADHD during menopause, and that one cross-sectional analysis in an Icelandic study found no significant difference in menopausal symptoms between women with and without ADHD. The same review pointed out that ADHD in women is frequently underdiagnosed, especially in midlife, when hormonal change can exacerbate or unmask symptoms.

The proposed mechanism is plausible. Estrogen influences dopamine signaling, and dopamine is central to attention and executive function. But plausible is not proven, and nobody has shown in controlled trials that stabilizing estrogen treats ADHD.

Why the two get confused

Both cause forgetfulness, trouble focusing, disorganization, emotional reactivity, poor sleep, and anxiety. Perimenopause alone can reduce learning and memory performance temporarily. In the SWAN study, women in perimenopause showed a subtle reduction in how well they learned on repeat testing, which rebounded after menopause.

Many women with inattentive-type ADHD were never diagnosed as girls because they were quiet and did well enough in school. They built systems and worked harder to compensate. When sleep deteriorates, anxiety rises, and hormones swing, the compensation can stop working, and the first diagnosis arrives in the 40s.

Clues that point in each direction

  • Toward ADHD: difficulties going back to childhood or school years (ADHD requires symptoms before age 12), a pattern of disorganization or impulsivity across many settings, and a family history.
  • Toward perimenopause: new onset in your late 30s or 40s with no earlier history, symptoms that worsen with poor sleep, hot flashes, or the days before your period, and other changes such as cycle shifts or night sweats.
  • Toward both: a lifelong tendency that got dramatically worse in the last few years.

What to do

  • Rule out the fixable causes first. Thyroid, ferritin, B12, vitamin D, and sleep apnea all cause poor focus. See what to rule out first.
  • Get evaluated by a clinician who diagnoses adult ADHD. A psychiatrist or psychologist experienced with adult women is ideal. Bring a written history of when the symptoms started.
  • Treat sleep and hot flashes. Poor sleep makes attention worse in everyone, and it is often the biggest single lever.
  • Don't stop an ADHD medication on your own. The review found no randomized trials of ADHD medication in perimenopausal women, so there are no validated dosing protocols. If your medication seems to work less well than before, tell your prescriber and track how it changes with your cycle.
  • Hormone therapy is not an ADHD treatment. It can treat hot flashes, sleep disruption, and other perimenopause symptoms, which may help focus indirectly. I would not start it based on ADHD symptoms alone, and it needs to be discussed with whoever manages your ADHD.
  • Use external structure. Written task lists, calendar alerts, and fixed routines work whether the cause is ADHD, perimenopause, or both.
  • Move regularly and limit alcohol. Exercise helps attention and mood, and alcohol worsens sleep.

If your focus has changed, you deserve a clear answer, not a guess in either direction. The evidence is early, but the workup is straightforward, and it separates what is fixable from what needs treatment.

References

  1. Jakobsdóttir Smári U, et al. “Perimenopausal symptoms in women with and without ADHD: A population-based cohort study.” European Psychiatry, 2025;68(1):e133. View source
  2. ADDitude. “Study: Perimenopausal Symptoms Are More Severe, Begin Earlier in Women with ADHD.” November 20, 2025. View source
  3. “ADHD in women across the final reproductive hormonal transition: a narrative review of pharmacological management.” Drugs & Aging, 2026. View source
  4. Greendale GA, et al. “Effects of the menopause transition and hormone use on cognitive performance in midlife women.” Neurology, 2009;72:1850-1857. View source