Part Two: Why ADHD Often Shows Up, or Gets Worse, When Hormones Are in Flux

Last week, I wrote about the complicated relationship between ADHD and food, the forgetting, the cravings, the all-or-nothing patterns. If you missed it, catch up here.

This week, I want to go deeper into something I've observed over and over, in my daughter, in my clients, and in the research that's starting to catch up.

There are two windows in a woman's life when ADHD tends to emerge or intensify: puberty and perimenopause.

Two Transitions, One Pattern

Here's the parallel: In puberty, estrogen is finding its footing...surging, dropping, wildly unpredictable as the body figures out its new rhythm. In perimenopause, estrogen is leaving...fluctuating erratically before its final decline.

Both are periods of hormonal instability. And both can unmask ADHD that was previously hidden, or make existing symptoms suddenly unmanageable.

Why? Because estrogen directly affects dopamine and norepinephrine, the very neurotransmitters already dysregulated in ADHD. When estrogen is stable, it can actually support focus, mood, and executive function. But when it's erratic? Everything feels harder. 

What Puberty Looks Like for Girls With ADHD

Here's the striking difference: While boys typically see a decrease in ADHD symptoms when they reach puberty, the opposite is true for girls, symptoms often get worse as estrogen increases and fluctuates. 

A 2025 scoping review in Clinical Psychology Review examined 89 studies on puberty and ADHD and concluded that individuals with ADHD may experience puberty differently from their peers, with significant implications for health and wellbeing. 

During puberty, girls with ADHD commonly experience:

• Heightened mood swings and emotional intensity

• Increased distractibility and trouble staying organized

• Social stress and rejection sensitivity

• Academic overwhelm as workload demands rise

• A tendency to internalize struggles, leading to anxiety, perfectionism, or depression rather than the "acting out" behavior more often seen in boys

Because these challenges present internally, many girls remain undiagnosed until adulthood. 

The Medication Wrinkle

Here's another layer: hormonal changes at puberty can cause ADHD medications to work differently. 

Studies have shown that estrogen may enhance a woman's response to amphetamine medications, but this effect may be diminished in the presence of progesterone. 

This means during the second half of the menstrual cycle, when progesterone rises, medication may feel less effective. The same medication, the same dose, but suddenly it's not working as well.

For a teenage girl (or her parents), this can be confusing and frustrating. It's not in her head. It's in her hormones.

The Perimenopause Plot Twist

Now fast forward twenty or thirty years.

Here's something I see more and more: women in their 40s and 50s showing up in my practice, or finally getting answers from a psychiatrist, after a lifetime of feeling like something was "off" but never knowing what.

For many women, perimenopause is when ADHD finally gets a name.

Why? The same reason puberty is so destabilizing, but in reverse. Estrogen isn't finding its footing anymore. It's leaving. And as it fluctuates and declines, so does its support for dopamine, working memory, and executive function.

Researchers describe it as "ADHD squared", the exponential effect of low estrogen plus low dopamine. A term I just learned doing this research. 

Symptoms that were once subtle...manageable through sheer effort, lists, routines, or the structure of raising kids or a demanding job...suddenly feel impossible to contain. Brain fog. Overwhelm. Emotional dysregulation. Forgetfulness that feels new but may have always been there, just masked.

What the Research Says

A population-based study found that hormonal fluctuations in perimenopause can exacerbate existing ADHD symptoms, or even lead to a first-time diagnosis of previously unrecognized ADHD.

Research also shows that women with ADHD often experience more severe perimenopause symptoms, and perimenopause may even begin earlier for them. 

The tragedy? Women who aren't diagnosed until midlife are more likely to have spent decades struggling with depression, anxiety, sleep disorders, eating issues, and low self-esteem, blaming themselves for not being able to "keep it together." 

A late diagnosis often brings grief. But also relief. Finally, a framework. Finally, it's not a character flaw.

Three Things to Try This Week

Track your cycle and your symptoms, together. Notice when things feel hardest, when focus sharpens, when cravings spike.

Protect the transition hours. After school, late afternoon, the hour before dinner, these are when blood sugar drops and dopamine is low. Build a small bridge into those windows: a protein-based snack, a short walk, stepping outside. Not a rigid routine, just an anchor that steadies things before they tip into crisis mode.

Name it. Whether you're a woman who just recognized herself in this, or a mom watching her daughter struggle, say it out loud: this has a reason.You're not dramatic. She's not difficult. The brain is doing exactly what a hormone-disrupted, dopamine-seeking brain does. Naming it without judgment is often the first thing that shifts the shame.

Coming Next Week

So what can we actually do about it?

Next week, I'm sharing lifestyle habits that support dopamine naturally, for teens and women in midlife. These are strategies rooted in research, tested in my practice, and used in my own home.

We'll cover nutrition, movement, sleep, stress, and a few things that might surprise you.

See you then.

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