Perimenopause hormones can fluctuate dramatically, which means a woman can have significant symptoms even when a single blood test comes back “normal.” In this Ask Me Anything episode of The Dr. Brighten Show, Dr. Jolene Brighten answers listener questions about hormone testing, ovulation, progesterone, estrogen, testosterone, birth control, Mirena, menopause hormone therapy, primary ovarian insufficiency, brain health, exercise, sex after menopause, and what women should actually be paying attention to during the menopause transition.
Dr. Brighten is board certified in naturopathic endocrinology, a nutrition scientist, and the author of ADHD and Women. Throughout this conversation, she explains why hormone values need to be interpreted in the context of symptoms, menstrual patterns, health history, medications, and the individual woman—not treated as isolated numbers on a lab report.
Pre-order ADHD and Women by Dr. Jolene Brighten and discover how perimenopause hormones shape focus, mood, executive function, and why neurodivergent brain transitions require a completely different approach http://drbrighten.com/adhdandwomen
Perimenopause Hormones: What You’ll Learn in This Episode
- Why new varicose veins shouldn’t automatically be dismissed as “just aging”—and what pelvic congestion, vascular health, and connective tissue may have to do with them.
- Why “normal” hormone labs may not mean your hormones are normal for you—and what Dr. Brighten looks at when a woman still feels terrible despite reassuring results.
- Why estrogen during perimenopause may surge, fall, and surge again instead of following the smooth downward decline many women expect.
- The constellation of symptoms that may provide clues about changing estrogen—including brain fog, word-finding difficulty, hot flashes, cold flashes, dry skin, joint pain, and exercise intolerance.
- What suddenly feeling anxious, sleepless, or disproportionately irritated by your partner might reveal about declining progesterone before your periods ever become irregular.
- How to figure out whether you’re still ovulating when perimenopause makes your cycle unpredictable—and why bleeding does not always prove ovulation occurred.
- The fertility-awareness clues that can help identify ovulation, including cervical mucus, temperature patterns, LH testing, and appropriately timed progesterone testing.
- Why Dr. Brighten says the luteal phase generally should not fall below 10 days during the cycling years—and what a shortening luteal phase may signal.
- Why an FSH above approximately 25 can provide information about the menopause transition, yet may be normal again the following month.
- Why testosterone testing can be especially useful—and why Dr. Brighten evaluates total testosterone, free testosterone, SHBG, DHEA-S, and sometimes DHT rather than looking at one number alone.
- Why roughly half of a woman’s testosterone production involves the adrenal contribution, making the conversation about women’s hormones much bigger than estrogen and progesterone.
- Why thyroid testing still matters when symptoms look like perimenopause—and the thyroid markers Dr. Brighten considers when investigating fatigue, brain fog, constipation, dry skin, and other overlapping symptoms.
- Why fasting insulin may reveal metabolic problems before obvious symptoms appear, and why metabolic health belongs in the perimenopause conversation.
- Why the birth control pill is not the same thing as menopause hormone therapy, even though both may contain forms of estrogen and progesterone-like hormones.
- The provocative unanswered question about long-term progestin exposure, progesterone, and women’s brain health that Dr. Brighten believes deserves far more research.
- Why progesterone’s conversion to allopregnanolone matters for GABA signaling—and why a synthetic progestin does not reproduce every effect of endogenous progesterone.
- When a Mirena IUD may be useful in perimenopause, including contraception, heavy bleeding, adenomyosis, and protection of the uterine lining.
- Why some women feel dramatically different on a progestin IUD—and the simple tracking strategy Dr. Brighten recommends before and after insertion.
- When cyclic progesterone versus continuous progesterone may make sense depending on whether a woman is still ovulating.
- Why women with a uterus generally need appropriate endometrial protection when using systemic estrogen.
- Why Dr. Brighten has moved away from routinely using Biest and how her approach to estradiol, estriol, testosterone, and compounded hormone therapy has evolved.
- Why women with ADHD and other neurodivergent conditions may experience hormone transitions differently, particularly when estrogen changes affect dopamine, acetylcholine, and serotonin.
- Why primary ovarian insufficiency can change the long-term conversation about bone density, cardiovascular health, and hormone exposure.
- How under-fueling and excessive exercise can sometimes resemble ovarian dysfunction—and why functional hypothalamic amenorrhea needs to be considered before assuming POI.
- Why estrogen is relevant to mitochondrial function, muscle recovery, connective tissue, and exercise capacity, not simply reproduction.
- Why cardiovascular health deserves serious attention during menopause, with cardiovascular disease remaining the leading killer of women.
- Why Dr. Brighten raises concern about women’s disproportionate burden of dementia and asks whether we are doing enough research into hormones and the female brain.
- Why postmenopause may come with something women rarely hear enough about: better sex, less fear of unintended pregnancy, more confidence, and less energy spent people-pleasing.
Perimenopause Hormones, Hormone Testing, HRT, Progesterone, and Estrogen
One of the biggest misconceptions about perimenopause hormones is that a single laboratory test can tell you definitively whether you are—or are not—in perimenopause.
Perimenopause is different from a simple hormone deficiency.
FSH can rise and then fall again. Estradiol can be high one month and substantially lower another. Ovulation can happen inconsistently. Progesterone production may become less reliable before menstrual periods disappear altogether.
That is why Dr. Brighten describes perimenopause as largely a clinical diagnosis: menstrual history, changing symptoms, age, ovulation patterns, medical history, and laboratory information all contribute to the bigger picture.
Why You Can Have Perimenopause Symptoms With Normal Hormone Labs
A laboratory reference range answers a very specific question: where does this result fall compared with the reference population?
It does not necessarily answer:
- Why you suddenly cannot retrieve words you have known for years
- Why you are waking at night
- Why anxiety has suddenly intensified
- Why hot flashes or night sweats have appeared
- Why your patience feels nonexistent
- Why your usual workouts suddenly leave you depleted
- Why your joints and muscles feel different
- Whether you are still ovulating consistently
This is why Dr. Brighten emphasizes interpreting laboratory values in the context of the woman experiencing the symptoms.
She also cautions against interpreting “hormone testing” as synonymous with measuring estrogen and progesterone. Depending on the clinical picture, testosterone, thyroid function, insulin, cortisol, and other markers may provide meaningful information as well.
Progesterone in Perimenopause
Progesterone can begin changing before estrogen becomes consistently low.
After ovulation, the follicle transforms into the corpus luteum, a temporary endocrine structure responsible for producing progesterone. As ovulation becomes less predictable during perimenopause, progesterone exposure can become less predictable too.
Dr. Brighten discusses symptoms that may accompany this transition, including:
- Sleep disruption
- Anxiety
- Irritability or rage
- A shortening luteal phase
- Increasingly unpredictable cycles
Progesterone also has effects beyond the uterus. Its metabolite allopregnanolone interacts with GABA receptors in the central nervous system, which is one reason progesterone and progestins should not automatically be treated as biologically interchangeable.
For women who continue to ovulate, Dr. Brighten discusses using progesterone cyclically after ovulation in appropriate clinical situations. Once ovulation becomes highly irregular or stops, continuous therapy may be considered instead.
Estrogen in Perimenopause
Estrogen is often described as “declining” during perimenopause, but that description can hide how volatile the transition actually is.
Estradiol may become highly variable, with periods of relatively high exposure followed by sharp drops.
Potential symptoms Dr. Brighten discusses include:
- Brain fog
- Difficulty retrieving words or names
- Hot flashes
- Night sweats
- Cold flashes
- Dry skin
- Itchy ears
- Burning mouth
- Joint pain
- Muscle aches or fatigue
- Reduced exercise tolerance
Estrogen also interacts with the brain, cardiovascular system, bone, connective tissue, muscle, and mitochondrial function. That is why the effects of menopause cannot be reduced to hot flashes or reproductive health alone.
Birth Control vs. Menopause Hormone Therapy
Hormonal contraception and menopause hormone therapy are not interchangeable.
The birth control pill is intended primarily to suppress ovarian function and prevent pregnancy. Menopause hormone therapy is typically designed to replace or supplement hormones in a different physiologic context.
The distinction becomes especially important for women approaching menopause who still need contraception.
Hormone therapy does not reliably prevent ovulation or pregnancy.
This creates a very practical question: when should someone who is using contraception transition to menopausal hormone therapy?
As Dr. Brighten explains, there is no single answer. Age, menstrual history, pregnancy risk, symptoms, personal medical history, and the reason someone originally started contraception all matter.
Mirena IUD and Perimenopause
A levonorgestrel-releasing IUD such as Mirena may have several potential roles during the menopause transition.
It can provide contraception and may reduce heavy uterine bleeding. It can also provide endometrial protection in some women using estrogen therapy and may be considered in conditions such as adenomyosis.
But Dr. Brighten emphasizes an important distinction:
A progestin is not progesterone.
While a progestin can act at progesterone receptors and provide important effects within the reproductive system, it does not necessarily reproduce all of progesterone’s downstream neurological effects.
She therefore recommends paying close attention to mood and neurological symptoms before and after starting a progestin IUD, particularly in women with previous hormonal sensitivity.
Testosterone in Women
Testosterone is also a women’s hormone.
Dr. Brighten discusses assessing:
- Total testosterone
- Free testosterone
- Sex hormone-binding globulin
- DHEA-S
- DHT when clinically relevant
Symptoms and laboratory results are interpreted together rather than using a single testosterone number as the sole basis for treatment.
The episode also covers practical challenges with testosterone therapy in women, including the difficulty of accurately dosing products manufactured primarily for men and why customized dosing may sometimes be considered.
Primary Ovarian Insufficiency and Early Menopause
Primary ovarian insufficiency, or POI, means ovarian function has become impaired earlier than expected.
The terminology matters. It was previously called “premature ovarian failure,” but ovarian activity can sometimes resume, which is one reason insufficiency is now preferred.
Early loss of ovarian hormone exposure may increase concern about:
- Bone density
- Cardiovascular health
- Long-term neurological health
- Muscle and metabolic health
Dr. Brighten also discusses the importance of looking for potential causes or conditions that may mimic POI, including autoimmune factors and functional hypothalamic amenorrhea related to inadequate energy intake relative to exercise expenditure.
Muscle, Mitochondria, and Exercise After Menopause
Estrogen has effects on much more than reproductive tissues.
Dr. Brighten discusses estrogen’s role in mitochondrial function and how lower estrogen can influence muscle fatigue, recovery, connective tissue, and exercise tolerance.
She also discusses resistance training and creatine as part of the larger conversation about maintaining muscle and physical function with age.
The point is not simply to “exercise more.”
Training strategies that worked at 25 may need to evolve at 45, 55, or after surgical menopause.
Frequently Asked Questions About Perimenopause Hormones
Yes. Hormones such as estradiol and FSH can fluctuate considerably during perimenopause, so a single blood draw may not reflect what is happening throughout an entire cycle. Symptoms, menstrual patterns, ovulation history, medical history, and appropriate laboratory testing should be considered together.
There is no single laboratory test that definitively diagnoses perimenopause in every woman. FSH and estradiol may provide information, but Dr. Brighten emphasizes that perimenopause is generally evaluated clinically based on symptoms and menstrual changes while ruling out other explanations.
In the episode, Dr. Brighten explains that an FSH above approximately 25 can be suggestive of the menopause transition, but FSH may subsequently return to much lower levels. A single result therefore should not be interpreted in isolation.
Possible clues include fertile cervical mucus, a sustained temperature shift after ovulation, LH testing, cycle patterns, and progesterone testing approximately five to seven days after suspected ovulation.
Yes. A menstrual-like bleed does not necessarily mean ovulation occurred. Anovulatory cycles become more common as ovarian function becomes less predictable.
Progesterone may be considered in certain women depending on symptoms, ovulation patterns, uterine status, medical history, and treatment goals. Dr. Brighten discusses both cyclic and continuous approaches in the episode.
Progesterone is a hormone naturally produced by the body and is also available as micronized progesterone. Progestins are synthetic compounds that activate progesterone receptors but do not necessarily have identical metabolism or neurological effects.
It may be useful for contraception, heavy bleeding, adenomyosis, and in some circumstances protection of the uterine lining during estrogen therapy. Individual tolerance varies.
In appropriate patients, a levonorgestrel IUD may be used alongside estrogen therapy. Whether additional progesterone or progestin is appropriate depends on the individual clinical situation.
There is no single age that is correct for every woman. Pregnancy risk, symptoms, menstrual history, type of contraception, medical history, and treatment goals all need to be considered.
No. Menopausal hormone therapy should not be relied upon as contraception.
Depending on symptoms, Dr. Brighten discusses testosterone markers, thyroid hormones, insulin, cortisol, and additional tests alongside estrogen and progesterone.
Hormonal fluctuations may be especially noticeable for some women with ADHD. In this episode, Dr. Brighten discusses estrogen’s relationship with dopamine, acetylcholine, and serotonin and why hormonally sensitive neurodivergent women may experience significant changes.
Changes in estrogen may influence muscle, connective tissue, mitochondrial function, and recovery. The episode explores why training strategy, hormone status, nutrition, muscle mass, and recovery all deserve consideration.
Absolutely. Dr. Brighten shares that some women experience more enjoyable sex after menopause because fear of unintended pregnancy disappears, while others report increased confidence and less energy devoted to people-pleasing.
Links and Resources Mentioned in This Episode
ADHD and Women by Dr. Jolene Brighten
Dr. Brighten references her book while discussing hormonal sensitivity, ADHD, estrogen, progesterone, and the menopause transition – https://drbrighten.com/adhdandwomen
Explore additional evidence-informed articles, podcast episodes, women’s health education, and complete show notes.
Find additional conversations about women’s hormones, endometriosis, ADHD, sexual health, perimenopause, menopause, and reproductive health.
Dr. Sarah Hill
Mentioned during the discussion of hormonal contraception and emerging research examining the potential effects of birth control on the brain.
Lisa Hendrickson
Mentioned as a resource for women interested in fertility awareness and interpreting complex cycle charts, particularly when hormone therapy makes conventional temperature tracking more difficult.
Dr. Vonda Wright
Referenced during the conversation about the musculoskeletal syndrome of menopause, estrogen, connective tissue, muscle health, and exercise.
Dr. Karan Christian
Referenced in connection with a previous discussion about estrogen, skin aging, inflammation, and skin health.
Dr. Ana Sierra
Mentioned during the conversation about varicose veins, vascular abnormalities, and possible pelvic congestion syndrome.
Mentioned as one way Dr. Brighten personally monitors temperature trends when tracking ovulation.
Creatine
Discussed in the context of muscle energy, exercise recovery, and menopause. Dr. Brighten emphasizes that supplement use should be individualized and discussed with an appropriate healthcare professional.
Vitex
Mentioned alongside vitamin B6 and vitamin C in the discussion of supporting the luteal phase while ovarian function is still present.
Vitamin D
Discussed in relation to laboratory evaluation and as one component of protecting bone health, particularly when ovarian hormone production is reduced.
Calcium and Magnesium
Discussed as part of the nutritional foundation for bone health in women with primary ovarian insufficiency or reduced estrogen exposure.
Research Topics Discussed in This Episode
The conversation references research and emerging evidence related to:
- Progesterone, allopregnanolone, GABA, and brain function
- BDNF and neurological health
- Hormonal contraceptives and the female brain
- Estrogen and bone density
- Estrogen and cardiovascular health
- Musculoskeletal syndrome of menopause
- Estrogen and mitochondrial function
- Estrogen, skin aging, and systemic inflammation
- Hormonal sensitivity in women with ADHD
- Endometriosis, endometriomas, and hormone therapy
- Adenomyosis and levonorgestrel IUDs
- Primary ovarian insufficiency and spontaneous return of ovarian activity
Specific research citations referenced in the conversation can be added to the published show notes alongside the studies supporting each topic.
Medical note: This episode is educational and is not individualized medical advice. Hormone therapy, contraception, supplements, laboratory testing, and treatment decisions should be made with a qualified healthcare professional who understands your symptoms, medical history, personal risk factors, and goals.
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