You’re 47. You used to be the first one up, the one who ran the meeting, the one who knocked out a Saturday morning run before anyone else was awake. Now you’re dragging yourself through the afternoon, forgetting why you walked into the kitchen, and canceling plans because you just don’t have it in you. Your doctor checked your thyroid. Normal. CBC. Normal. “Maybe try getting more sleep,” they said.
Nobody checked your testosterone. Nobody even mentioned it.
That’s the gap most women over 40 fall into. Testosterone is dismissed as irrelevant to female health, something only worth discussing in a urology office. But women produce testosterone naturally, and when it drops (which it does, steadily, with age), the effects go far beyond what most providers acknowledge.
“I’m kind of excited because I think there’s now a conversation around this,” says Dr. Rose, a naturopathic physician with 20 years of experience in women’s health. “Up until quite recently, it’s been taboo.”
It shouldn’t be.
The Hormone Your Doctor Probably Has Not Checked
Here’s what usually happens. A woman in her 40s or early 50s walks into her primary care office or gynecologist. She says she’s exhausted. She’s foggy. She has no motivation. Her body doesn’t feel like hers anymore.
If she’s lucky, someone orders a basic hormone panel. Estrogen, maybe progesterone. If she’s less lucky, she hears “your labs look fine” and gets sent home.
Almost nobody checks testosterone.
“Female testosterone is something traditional offices blow off,” one patient told us. “But it’s just as important for women.”
She was right. Women need testosterone. Not in the same amounts, obviously. But at adequate levels for their body, their age, their chemistry. When those levels drop, and after menopause they almost always do (“99.9% of the time your testosterone is low,” Dr. Rose notes), women feel the difference everywhere.
The problem is that most conventional providers either don’t think to test it, or don’t consider low testosterone in women a treatable issue. Some patients have been told outright that there’s no reason to check sex hormones. One patient recalled: “I asked them to check my hormones and they refused.”
That’s not a rare story. It’s a pattern.
More Than Libido
Ask most people what testosterone does for women and they’ll say one word: libido. That’s part of it. But reducing testosterone to sex drive misses the bigger picture.
“Overall drive, overall interest and motivation, mental clarity, muscular strength, muscle tone, lean muscle mass,” Dr. Rose lists when describing what testosterone supports in women. It touches how you feel when you wake up in the morning. Whether you have the energy to push through a full day. Whether your brain can stay sharp past 2 p.m. without a fog rolling in.
Testosterone affects brain fog in perimenopausal and menopausal years. That cloudy, word-searching, “I can’t hold a thought” feeling that so many women describe? Progesterone supplementation helps. But testosterone plays a role too, and it’s the one most providers skip entirely.
On the physical side, declining testosterone makes it harder to maintain muscle. Lean muscle mass protects bones, supports metabolism, and keeps your body functional as you age. When testosterone is low, women notice their muscles getting softer, their strength fading, their body composition shifting even when their diet hasn’t changed.
A realistic expectation when hormones are properly addressed: 5 to 15 pounds of improvement in body composition. That’s not a dramatic before-and-after transformation. It’s your clothes fitting again. It’s feeling strong when you pick something up. It’s your body responding to exercise the way it used to.
The Mustache Fear (and Why It Is Overblown)
This is the conversation that stops a lot of women cold. They hear “testosterone” and picture facial hair, a deeper voice, something going wrong. The fear is understandable. It’s also, in almost every case, unfounded.
“I have never seen that happen with all the women that we prescribe testosterone to,” Dr. Rose says. “Dosed appropriately, I’m not seeing unwanted body hair.”
The key phrase there is “dosed appropriately.” Women aren’t receiving large doses. The amounts are carefully calibrated to each individual’s blood work, symptoms, and body chemistry.
There’s a second factor that matters: estrogen and testosterone have a balancing relationship in the body. They compete. If testosterone goes up while estrogen stays low (which happens naturally after menopause, when estrogen declines), androgenic side effects become more likely. That’s why responsible treatment doesn’t just address one hormone in isolation. The whole picture matters.
“Estrogen and testosterone are sort of competing,” Dr. Rose explains. “You don’t want somebody to be so androgenic that the testosterone overpowers estrogen.”
So when both hormones are evaluated and balanced together, the mustache fear doesn’t hold up. Not at appropriate doses. Not with proper monitoring.
When Testosterone Is Too High
Optimization doesn’t always mean “add more.” Sometimes it means bringing levels down.
Polycystic ovarian syndrome (PCOS) is a perfect example. Women with PCOS often have testosterone levels that are too high, and that excess causes real problems: irregular cycles, acne, unwanted hair growth, difficulty with fertility. For these women, the goal isn’t to raise testosterone. It’s to figure out why it’s running high and address the underlying imbalance.
Dr. Rose sees women with PCOS who are in their 20s and 30s. The hormonal picture looks completely different from a postmenopausal woman whose testosterone has bottomed out. Same hormone, opposite problems, completely different treatment paths.
This is why a number on a lab report means nothing without context. A testosterone level of 35 might be too low for a 52-year-old woman experiencing fatigue, brain fog, and muscle loss. That same number might be perfectly fine for someone else. And a level of 80 might be appropriate for one woman and problematic for another, depending on her estrogen levels, her symptoms, and her overall hormonal landscape.
“I’m always bringing in her lived experience, her clinical presentation,” Dr. Rose says. Blood work informs the conversation. It doesn’t replace it.
How Women Can Advocate for Themselves
If you’re in your late 30s, 40s, or 50s and something has shifted, trust that instinct. You lived in your body when it worked well. You can tell when it stops working.
Track your symptoms. Write them down. Fatigue, brain fog, motivation changes, muscle loss, sleep disruption, mood shifts, changes in your cycle. Having a list makes it harder for a provider to wave things away with “it’s just stress.”
Ask for the right tests. A basic metabolic panel won’t show you what’s going on hormonally. Request: estradiol, progesterone, free and total testosterone, DHEA-S. Add a full thyroid panel (not just TSH, but free T3, free T4, and thyroid antibodies). Fasting insulin. CRP and homocysteine for inflammation markers.
If your provider won’t order those tests, that tells you something. Find one who will. That’s not being difficult. That’s being informed.
Be cautious with one-size-fits-all solutions. Online hormone services have become popular, and for good reason. Women are frustrated. They’ve been told no by their doctors, and an online subscription feels like taking control. But there’s a gap between convenience and quality.
“Whatever is given through a mail-order service, there’s no individualized chemistry, no metabolism assessment, no medication review,” Dr. Rose says. “We spend an hour with somebody.”
That hour matters. Testosterone doesn’t exist in a vacuum. It interacts with estrogen, with thyroid function, with adrenal health, with every medication and supplement you’re already taking. A provider who spends five minutes reviewing a questionnaire and ships a standard dose is guessing. A provider who reviews your labs, sits with you for an hour, and adjusts your treatment based on how you actually feel is practicing medicine.
Know the difference between “normal” and “optimal.” Lab reference ranges are broad. A woman’s testosterone might fall within the normal range and still be far below where she’d function best. “We have an optimal level that’s safe yet higher than what some conventional medical providers might consider normal,” Dr. Rose explains.
Normal means you’re not flagged on a lab report. Optimal means you feel like yourself.
Your Hormones, Your Conversation
Testosterone has been left out of the women’s health conversation for too long. It’s been dismissed, ignored, or treated as irrelevant. That’s changing, slowly. Research is catching up. Providers are catching up. But the medical system moves slowly, and you don’t have to wait for it.
If you’re over 40 and something feels off, if you’re tired in a way that sleep doesn’t fix, if your motivation has evaporated, if your body doesn’t respond to effort the way it used to, testosterone might be part of the answer. Not the whole answer. But a piece that’s been missing from the puzzle.
Ask the question. Get the labs. Find a provider who will look at the full picture, not just the reference range. Your body has been telling you something. It’s time someone listened.
About the Author: Dr. Rose is a naturopathic physician and licensed acupuncturist at Med Matrix (medmatrixusa.com), a functional medicine clinic in South Portland, Maine. With 20 years of clinical experience, she specializes in bioidentical hormone therapy for women and has helped hundreds of patients understand the role testosterone plays in their energy, clarity, and quality of life.
