The Perimenopause Glass Ceiling

How hormonal changes sabotage women’s careers and what we can do about it

There’s a glass ceiling in the workplace that no one is talking about.

It’s not created by policy. It’s not maintained by bias. And it won’t be shattered by any legislation.

It’s the perimenopause glass ceiling*.

Just as women hit their professional stride, armed with years of experience, hard-won expertise, and the confidence that comes from proving yourself over and over, a biological shift begins to undermine the very cognitive tools they’ve relied on to succeed

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The Cruel Evolutionary Design

Here’s what’s happening beneath the surface: Humans are unique among mammals in how deeply our hormonal health is tied to fertility. It’s an evolutionary design that made sense for survival, but makes no sense for modern women leading organizations.

Inside your ovaries are millions of eggs. Surrounding each egg is a layer of cells called follicular cells. Follicular cells are what make your estrogen and progesterone. These hormones aren’t just about reproduction. They’re like invisible shields, protecting every cell in your body, from your bones to your brain. They guard your heart, strengthen your muscles, preserve your skin, support your vaginal and pelvic floor, and maintain your cognitive function.

Each month, your ovaries push out one egg. Throughout the month, dozens of other eggs self-destruct. Eventually, you get to a point where you’re running out of eggs.

This is perimenopause - the 2-10 year runway to menopause, when you’re losing eggs, and your estrogen and progesterone production becomes erratic. And when the eggs are gone entirely? That’s menopause. No eggs means very little of those hormones.

It seems like a cruel joke, tying our intellectual and physical vitality to our reproductive capacity. But that’s exactly what evolution has done.

The Brain Energy Crisis

Neuroscientist Lisa Mosconi published landmark studies showing that brain energy drops by 30% during perimenopause. Think about that. Your brain, your primary professional asset, is operating at 70% capacity. Same job responsibilities. Same deadlines and deliverables. Same expectations. Just... less cognitive fuel.

When your brain is running on 30% less energy, your clarity, processing speed, and executive function all take a hit. That’s biology working against your professional trajectory.

Over 60% of women in perimenopause report brain fog, a catch-all for memory lapses, word-finding issues, trouble multitasking, lack of focus, and mood swings.

Women often dismiss these “soft” symptoms as something else - too much stress, not enough sleep, my kids are acting up. But there are very real hormonal reasons why you may be struggling. It all comes down to estrogen, progesterone, and testosterone (plus sometimes thyroid, cortisol, insulin, and melatonin).

The Hormonal Trifecta

Estrogen is the master regulator of the female brain. Estrogen fuels neuroplasticity, brain energy, cell growth, and protection against degeneration. Without it? You feel like you’re trying to perform at your peak on three hours of sleep and half a cup of coffee.

During early perimenopause, estrogen is chaotic, up and down in random bursts, often 20-30% higher than before. Later in perimenopause, estrogen waves her last goodbye, causing your brain to quite literally change as it tries desperately to squeak out your last reserves of hormone.

But estrogen isn’t the only one ghosting you.

Progesterone, which binds to calming GABA receptors and helps you sleep, regulate anxiety, and stop spiraling at bedtime, starts to fade too. In fact, progesterone typically begins to decline BEFORE estrogen, which can lead to both “estrogen dominant” symptoms as well as low progesterone-related problems.

And testosterone (I call it the Boss Babe Hormone) takes a hit as well. Women actually have more testosterone than estrogen in their bodies. Did you know that? We think of testosterone as being a “male” hormone, but it’s not. It’s a “people” hormone. As in men, women’s testosterone starts declining after age 25.

Testosterone is essential for mood, fat burning, muscle building, and libido, but it’s much more than that. Some people say that testosterone makes people aggressive. But it’s less about aggression and more about increasing motivation, competitive drive, and decisiveness.

We know from studies in women that low testosterone not only causes fatigue, low mood, and decreased interest in enjoyable activities (anhedonia), it also affects your desire to go the extra mile. It affects your ability to make quick decisions.

This is why some research shows that workplaces often misattribute a perimenopausal woman’s changing performance to “losing her edge,” when biologically, she’s simply lost the hormonal support for her natural drive and decisiveness.

So now imagine you’re losing estrogen, your brain’s primary “light bulb” that keeps it sharp. You’re losing progesterone, the hormone that helps you sleep and keeps anxiety at bay. And you’re losing testosterone, which gave you the neurological support to make decisions quickly and stay engaged and motivated.

All three of these hormones are saying sayonara... at the same time.

The Professional Consequences

As high-performing professional women, you’re used to working hard and seeing results. You’re accustomed to solving problems through skill, determination, and sheer effort.

But with perimenopause? No amount of hard work alone will guarantee you’ll come through unscathed. No amount of determination will let you outrun this formidable opponent.

This isn’t something you can out-hustle.

No mindset hack is going to restore those hormones. This is not a willpower problem. This is a biological shift with professional consequences.

The implications for your workplace performance are real, affecting:

• Decision-making quality and speed

• Strategic thinking and problem-solving

• Emotional regulation under pressure

• Energy for the demands of your work

• Confidence in high-stakes moments

The Three Barriers to Getting Help

I’ve worked with professional women for more than a decade, and there are three patterns I’ve seen over and over again that stand in the way of getting the help they need during perimenopause.

They grin and bear it.

Women are so good at suffering. All women, especially women who’ve built careers through persistence and determination, can suffer with the best of them. Yes, the symptoms are bothersome. Yes, you’d rather feel better, but you tell yourself, “I can do hard things. I’ve given birth. I’ve overcome obstacles. I can do hard things.”

When I was a young emergency physician, I never missed a day of work. I worked through strep throat and GI distress. I worked through almost-hourly vomiting with my twin pregnancy. I remember being so lightheaded during that pregnancy that I’d have to hold on to the patient’s bed each time I stood up to prevent myself from passing out. But what other option did I have? I powered through because that’s what women do.

There’s no doubt you CAN power through. We’ve done it for generations. But is that the best thing for you? For your family? For your company? For your long-term health?

They’re busy.

It’s not uncommon for women to see four, five, or six doctors before getting appropriately diagnosed and treated in perimenopause. Who has time to see five doctors?!

They feel… Shame.

There’s a stigma attached to entering perimenopause. This is especially true in competitive workplaces or youth-dominated industries. I mean, it’s bad enough that you’re aging. It’s UNFORGIVABLE that you’re aging while female!

A few months ago, I started waking up sweaty at night. I’d be covered in sweat, so I’d pull my covers off, then I’d wake up 30 minutes later freezing cold. Back and forth, all night. This happened several times over the course of months, and I decided that my mattress cooling pad must be broken. I got so mad at my mattress cover. I’m over there, writing angry emails to customer service. Then it hit me... I was having night sweats. These were night sweats. I was completely surprised, even though I’m a menopause educator. And you know what the next emotion was? Shame. I felt ashamed that I couldn’t control my body. I should know better!

That shame? It’s not just a personal problem. It’s a systemic failing.

If we don’t talk about this, who will? If we don’t demand better medical care, better workplace accommodations, better research, who will?

The silence doesn’t just isolate us; it perpetuates the cycle for every woman coming up behind us. When we don’t talk about this, we are actively reinforcing the hormonal glass ceiling that keeps all women from reaching their true potential, both at work and at home.

And that should make us furious. Not ashamed. FURIOUS.

The Staggering Statistics

65-99% of women with menopausal symptoms say those symptoms had a negative effect on work performance, with psychological and neurocognitive symptoms (ahem… “brain fog”) being particularly disruptive.

35- 59% of women make career-limiting decisions, such as turning down promotions or reducing their hours, to manage symptoms during perimenopause. The number of messages I’ve received from women saying they “just couldn’t do the job anymore” is shocking.

This is why about 20% of women seriously consider leaving their jobs due to perimenopausal symptoms. That’s one in four women at a critical point in their careers, with valuable skills and institutional knowledge, contemplating walking away.

The conversations I have with women behind closed doors reveal the true cost: the teacher with diminished confidence, the C-suite executive who couldn’t stop second-guessing, the designer whose energy was diverted to simply maintaining baseline function instead of doing her best work.

Most women are prescribed antidepressants, told to drink wine, or advised to “meditate more,” as if you could meditate away a fundamental hormonal deficiency. As if you haven’t already tried every productivity hack, wellness routine, and mindfulness practice available.

You’re not suffering from a lack of Lexapro or too little pinot noir. You’re suffering from the gradual disappearance of the very hormones that have supported your cognitive function, emotional regulation, and physical vitality throughout your career.

Only 2- 6% of companies have perimenopause/menopause workplace support in place. And what’s worse? Most doctors receive less than two hours of education on treating menopause during medical school, despite women spending 40% of their lives in menopause!

There Is a Path Forward

Here’s the good news: you don’t have to suffer through this transition. A combination of strategic lifestyle changes and hormone optimization therapy can make all the difference.

Lifestyle interventions matter. Heavy strength training preserves muscle and bone. Optimal protein intake (around 1g per pound of ideal body weight) supports metabolism. Quality sleep, stress management, and limiting alcohol all become more important as your hormonal landscape shifts.

But lifestyle alone often isn’t enough. This is where hormone optimization therapy (HOT) comes in - precision medicine that replaces what your body is losing. We’re not talking about your mother’s hormone replacement. Modern bioidentical hormone therapy, when properly prescribed and monitored, can:

• Restore brain energy and cognitive function

• Improve sleep quality and emotional regulation

• Protect against osteoporosis, heart disease, and dementia

• Maintain energy, motivation, and that competitive edge

• Be started in perimenopause - there’s no reason to wait!

Breaking Through

The perimenopause glass ceiling needs to be shattered. And I believe that by bringing this to your attention - by naming it - we take the first step toward breaking through it.

Although some of you will skate through with minimal issues, many won’t. And it’s not because you’re not smart enough or don’t work hard enough.

It’s because nature wants you to slow down. To hang out in your hut with your grandkids, making baskets. Nature wants you to become more frail and step aside for the next generation.

If that is not what you want? Then you have to outsmart nature, not outwork it.

This is not about reversing aging, it’s about reclaiming your trajectory because midlife should be your prime time, not a slow fade into irrelevance.

This is your Queen Phase. This is your time.

Use that newfound crown to crash right through that perimenopausal glass ceiling.

Ready to learn more? I’ve created a comprehensive (and free!) Perimenopause Guide that breaks down everything you need to know in an easy-to-read, easy-to-share pdf format. Get your copy at www.dramykillen.com/perimenopause

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* I first heard the term “perimenopause glass ceiling” from Karla Stewart, co-founder of Tangerine. Karla had asked me to speak at a women’s event in New York City for high-performing women in midlife who might soon be faced with hitting “the perimenopausal glass ceiling.” So, thank you Karla, for raising awareness about this important topic.

P.S. I didn’t go in depth on treatment of perimenopause in this article, but I’ve written many previous detailed articles on the subject, including how to identify symptoms, how and when to test hormones, and how to think about hormone optimization in perimenopause. Take a scroll back through the archives to learn more.

References

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Full survey PDF:

https://balance-menopause.com/uploads/2021/09/Menopause-and-the-workplace.pdf

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