Most of us learned only a few basic facts about menopause growing up: your periods eventually stop, hot flashes happen, and sometime around 50, you officially enter menopause. Turns out, much more is going on.
Research continues to uncover just how much happens throughout the body during the years leading up to and following menopause. Scientists are studying connections to brain health, mental health, skin, vaginal health, and more. They’re also finding that menopause doesn’t look the same for everyone—or necessarily happen when we expect it to.
And while we still don’t know much, what researchers have learned so far deserves much more attention.
In honor of World Menopause Day, we’re digging into nine menopause facts that go beyond hot flashes and periods—and a few might genuinely surprise you.
Fact #1: Perimenopause Can Start in Your Mid-30s
Perimenopause typically starts in the 40s, but symptoms can begin as early as the mid-30s and continue for years before the final period.
And your period doesn’t have to disappear for perimenopause to begin. During this stage, estrogen production becomes more unpredictable. Periods may still come regularly at first, even as subtle changes begin. Over time, cycles may become shorter, longer, heavier, lighter, or less predictable.
If you’re 37 or 42, changes in your sleep, body temperature, vaginal health, mood, or menstrual cycle might not immediately make you think of perimenopause. You may even assume you’re too young. But reproductive aging doesn’t follow one exact timeline, and researchers have found that some symptoms can appear before the more obvious changes to your menstrual cycle begin.
Fact #2: The “Average Age” of Menopause Hides a Pretty Big Range
You’ve probably heard that menopause happens around age 51 or 52. But one of the most important facts about menopause is that the average doesn’t tell the whole story. There’s a much wider range of what’s considered typical.
Natural menopause most often occurs between ages 45 and 55. Menopause that happens between 40 and 45 is considered early menopause, while menopause before age 40 is considered premature menopause. Genetics, certain medical treatments, surgery, and other health factors can all influence timing.
That range matters because 51 isn’t a starting line. Perimenopause can begin years before the final menstrual period, so changes may show up well before a woman reaches the average age of menopause.
Knowing the timeline can make it easier to recognize changes and bring them up with your healthcare provider. At 42, 45, or 48, you’re not necessarily “too young” for menopause to be part of the conversation.
Fact #3: Estrogen Helps Regulate More Than Your Period
One of the lesser-known facts about menopause is just how many jobs estrogen has beyond the reproductive system. It also affects how the body responds to insulin, the hormone that moves glucose from the bloodstream into cells for energy.
As estrogen declines during the menopause transition, that metabolic relationship can change. Research has linked menopause with increased insulin resistance, meaning the body’s cells may not respond to insulin as effectively. The transition is also associated with changes in blood sugar regulation, inflammation, cholesterol, and body composition.
One change you may actually notice is where your body stores fat. According to the American Heart Association, visceral fat—the deeper abdominal fat surrounding internal organs—tends to increase during the menopause transition, while lean muscle mass can decrease.
Taken together, these metabolic changes can contribute to a higher risk of type 2 diabetes and cardiovascular disease after menopause. A 2024 review of menopause and cardiovascular risk highlights insulin resistance, changes in body composition, and worsening cardiovascular risk factors as important parts of the menopause transition.
In other words, declining estrogen isn’t only connected to the symptoms you can feel. Researchers are also paying attention to changes happening beneath the surface.
Fact #4: Vaginal Dryness May Tell Us More About Perimenopause Than Brain Fog Does
Brain fog and mood changes get a lot of attention in conversations about perimenopause. But vaginal dryness may actually tell us more about where someone is in the menopause transition.
A 2025 study published in The Lancet Diabetes & Endocrinology looked at symptoms across different stages of menopause. Researchers found that moderately to severely bothersome vaginal dryness was about 2.5 times more common in late perimenopause than in premenopause. Poor memory and low mood, while common, didn’t differ enough between stages to be useful markers on their own.
There’s a biological reason vaginal changes stand out. As estrogen levels decline, vaginal tissues can become thinner, drier, and less elastic. Meanwhile, memory and mood can change for many reasons, including stress, sleep, mental health, and other health conditions.
The findings also reinforce something worth saying more often: vaginal health isn’t only about sex. It’s part of your overall health, and perimenopause changes deserve the same attention as any other symptom.
Fact #5: Perimenopause Has Been Linked to More Than Double the Rate of First-Time Mania
Mood changes during perimenopause aren’t exactly news. But some of the more surprising facts about menopause involve mental health changes that go beyond feeling more irritable, anxious, or emotional.
A 2024 study published in Nature Mental Health analyzed data from more than 128,000 women. Researchers compared first-onset psychiatric disorders during perimenopause with the years before it. They found that the incidence of first-onset mania was 2.12 times higher during perimenopause. Major depressive disorder also increased by 30%.
Researchers don’t know that perimenopause causes these conditions. Instead, the findings raise important questions about how hormonal fluctuations during the menopause transition may interact with mental health. The study’s authors specifically noted a possible connection between mania and the hormonal changes of perimenopause, while emphasizing the need for more research.
And an important distinction: experiencing mood swings, anxiety, irritability, or other emotional changes during perimenopause does not mean you’re developing bipolar disorder.
What the research does tell us is that mental health deserves a much bigger place in the menopause conversation.
Fact #6: Menopause May Leave Measurable Marks on the Brain Years Later
When menopause happens may matter long after the hot flashes and period changes end.
In a 2025 study of postmenopausal women, researchers found that earlier menopause was associated with lower cognitive performance and less total gray matter volume later in life. Gray matter plays an important role in memory, learning, decision-making, and other cognitive functions.
Another 2025 study uncovered an interesting heart-brain connection. Among women who experienced menopause earlier, lower cardiac function was more strongly associated with reduced gray matter volume and a greater burden of white matter hyperintensities. These changes in the brain’s white matter become more common with age and are associated with vascular and cognitive health.
But an association doesn’t mean earlier menopause directly causes these brain changes. Researchers still need to understand the mechanisms involved.
What the findings do suggest is that reproductive, cardiovascular, and brain health may be more connected than we once realized—and the timing of menopause could become an important piece of that bigger picture.
Fact #7: Menopause Can Change Your Skin—and Your Teeth
Your skincare didn’t suddenly stop working. The skin underneath it may actually be changing. And surprisingly, menopause can affect your mouth, gums, and teeth, too.
As estrogen declines, research shows that skin can lose collagen, elasticity, thickness, and moisture. These structural changes can contribute to dryness, wrinkles, increased fragility, and slower wound healing. In other words, menopausal skin changes go much deeper than needing a better moisturizer.
Of all the facts about menopause we hear, its effect on oral health rarely makes the list. But your mouth responds to hormonal changes, too. A 2025 review of menopause and oral health found links between menopause and reduced saliva, periodontal problems, changes in the bone supporting the teeth, and increased risk of tooth loss. Lower estrogen may also contribute to dry mouth, which can leave teeth more vulnerable to cavities and infection.
The connection makes more sense when you look at the biology. Estrogen receptors exist in the skin, oral tissues, and salivary glands.
So when we talk about menopause as a whole-body transition, we really do mean the whole body—even your smile.
Fact #8: Autistic Women May Experience Menopause Differently—and Have a Harder Time Getting Help
There’s no single menopause experience, and emerging research suggests the transition may look different for autistic women.
A 2025 systematic review of autism and menopause found evidence that autistic people may experience more severe menopause symptoms than non-autistic people. Studies have reported changes in sensory sensitivities, emotional regulation, sleep, executive functioning, and the ability to manage everyday demands during the menopause transition.
Getting the right support can also prove difficult. Research exploring autistic people’s experiences of menopause has described challenges recognizing which changes may relate to menopause, communicating those experiences to healthcare providers, and finding professionals who understand both autism and menopause.
Researchers still have a lot to learn. Studies in this area remain limited, and the evidence can’t explain exactly why autistic women may experience menopause differently.
But the research highlights a larger gap in women’s health. Better menopause research doesn’t just mean learning more about menopause. It also means making sure we study and understand the women whose experiences have historically received less attention.
Fact #9: Cannabinoid Research for Menopause Is Finally Starting to Catch Up
Women are already using cannabinoids to manage menopause symptoms. However, the science hasn’t kept pace. In one survey of perimenopausal and postmenopausal women, nearly 79% of current cannabis users said they used it for menopause-related symptoms, most commonly sleep and mood or anxiety.
Researchers are starting to take a closer look. In 2025, Washington State University announced a clinical study investigating whether a hemp-derived cannabinoid formulation could help with physical, emotional, and cognitive symptoms of perimenopause and menopause. Researchers are using a double-blind, placebo-controlled design to study the effects rather than relying on self-reported experiences alone.
Earlier animal research offers some interesting clues. In one study of an estrogen-deficient mouse model, CBD improved glucose tolerance and bone density while producing changes in gut bacteria, including an increase in Lactobacillus. Other preclinical research found that CBD reversed certain memory impairments associated with estrogen depletion in rodents.
But here’s the important part: animal research can’t tell us that CBD will produce the same results in menopausal women. Researchers still need well-designed human studies to understand potential benefits, risks, doses, and long-term effects.
Of all the facts about menopause researchers continue to uncover, the role cannabinoids may play remains one of the bigger unanswered questions. It’s less “the science says yes” and more “the science is finally starting to ask the question.”
You Have Options
If these facts about menopause make anything clear, it’s that there’s no single way to experience it—and no single way to support yourself through it.
You have options. Hello Again is one of them.
We created Hello Again for women looking for a non-hormonal, plant-powered addition to their wellness routine. Our vaginal suppositories use cannabinoids and other thoughtfully selected ingredients, with formulas designed around the things women tell us they need support with most: feeling comfortable in their bodies, thinking a little clearer, and getting better rest.
Choose Mind for clarity and mood, Body for comfort and balance, or Sleep when better rest is the priority. Because menopause may change what your body needs, but it doesn’t change your right to find what works for you.
World Menopause Day is a good reminder to keep learning, keep asking questions, and keep exploring your options.
Your body is changing. Your support can change with it.
Key Takeaways
- Menopause Affects Far More Than Your Period: Hormonal changes can influence your brain, heart, metabolism, skin, teeth, vaginal health, sleep, and mental health.
- There Is No Universal Menopause Experience: Timing, symptoms, and severity vary widely, so better research and more individualized support are essential.
- You Have Options for Support: Menopause care isn’t one-size-fits-all. From hormonal and nonhormonal approaches to wellness options like Hello Again, women deserve choices that work for their bodies and needs.