Cardiovascular risk doesn't wait for menopause, and the perimenopausal window may matter more than you think.
Your heart in perimenopause: what the research is actually telling us
If you've felt your body shifting in ways you can't quite name, you're not imagining it. Perimenopause, the transitional years before menopause, brings hormonal fluctuations that ripple well beyond hot flushes and irregular cycles. New research points to a quieter concern underneath: cardiovascular risk appears to climb during this window, often before a woman has clocked a single traditional warning sign.
A study analysing data from 9,248 females, aged 18 to 80, has sharpened the picture. The findings suggest that the perimenopausal years, not just the postmenopausal ones, deserve serious attention when it comes to heart health.
What the study measured
Researchers pulled data from the National Health and Nutritional Examination Survey cycles 2007 to 2020, focusing on women who were not pregnant, not breastfeeding, and had no prior cardiovascular disease. They scored each participant using the American Heart Association's Life's Essential 8 framework, a tool that rates diet, physical activity, nicotine exposure, sleep, body mass index, blood lipids, blood sugar, and blood pressure.
The overall LE8 score worsened, from 72.2 in premenopausal women to 67.3 in perimenopausal women to 64.0 in postmenopausal women, reflecting the effects of chronological and ovarian aging. Across all three groups, diet scored the lowest and sleep scored the highest. Translation: women across the reproductive lifespan are eating in ways that aren't serving their hearts, regardless of where they sit hormonally.
The perimenopause spike nobody warned you about
Here's where the data gets uncomfortable. Perimenopausal women had about twice the odds of having a poor overall score when compared with premenopausal women, after adjusting for age. That jump is striking, and it's happening while oestrogen is fluctuating wildly, not after it's gone.
The breakdown is telling. Perimenopausal women had 76% higher chances of poor blood lipid scores and 83% higher chances of poor blood sugar compared to premenopausal women. Lipids and blood sugar are two of the biggest drivers of long-term cardiovascular risk, and both appear to take a hit during this transition.
For postmenopausal women, the likelihood of overall poor LE8 scores appeared to be higher than for premenopausal women, but these results were not statistically significant. The perimenopausal window, in other words, may matter more than the postmenopausal one for catching risk early.
Why oestrogen's wild ride matters
The researchers hypothesise that perimenopausal fluctuations, rather than the slower menopausal decline in oestrogen, create a "detrimental and unstable metabolic environment." Oestrogen isn't just about reproduction; it also has cardioprotective effects, including beneficial impacts on lipid profiles, glucose metabolism, and vascular function. When those levels swing unpredictably, the systems oestrogen normally supports get knocked off balance.
This is worth sitting with. The conversation around midlife heart health often skips straight to "after menopause," framing it as a problem for older women. The data suggests the groundwork is being laid years earlier, during a phase many women (and their clinicians) still associate mainly with cycle changes and sleep disruption.
What you can actually do with this information
None of this means your heart is doomed. It does mean the perimenopausal years are a smart time to get a baseline and pay attention to the metrics that moved most in the study: lipids and blood sugar.
A standard blood test through your GP can give you a lipid panel and fasting glucose reading. If those numbers are trending in the wrong direction, your doctor can help you decide on next steps, whether that's lifestyle changes, further monitoring, or a referral. Resistance training and regular aerobic activity both support cardiovascular markers, and they're well within the scope of what a structured fitness programme can help you build. Nutrition-wise, the study's own data flags diet as the weakest LE8 component across all groups, so working with an Accredited Practising Dietitian to look at your patterns (not a rigid macro prescription) is a reasonable starting point.
If you're already in perimenopause and you've been dismissing fatigue, brain fog, or new stubborn weight gain as "just hormones," consider this a nudge to bring up heart health at your next appointment. The risk is modifiable, and the window to act may be earlier than you think.
A practical starting point
Three things, not thirty. First, book a blood test that includes lipids and fasting glucose, then discuss the results with your doctor. Second, notice your sleep, movement, and eating patterns without judging them, then pick one habit you can genuinely sustain. Third, if anything in this article resonated with how you've been feeling, mention perimenopause and cardiovascular risk by name at your next GP visit, so it lands on the agenda.
You don't need to overhaul your life. You need information, and the perimenopausal years appear to be where that information matters most.
Educational content only. Not a substitute for medical advice. Talk to your doctor about your specific situation.
References
- [1] A recent study compared premenopausal, perimenopausal, and postmenopausal women's cardiovascular health. (Amrita Nayak, M.D., lead author; Garima Arora, M.D., senior author; University of Alabama at Birmingham)
- [2] The menopausal transition, and the associated changes in hormonal levels, especially declining estrogen levels, mark not only the cessation of reproduction but also a general decline in physical and psychosocial health, including a decline in cardiovascular health.
- [3,4] Previous studies have suggested that incorporating regular exercise among perimenopausal women helps preserve cardiometabolic health. Such effects were not observed in postmenopausal females.
- [6] Estrogens are also known to have cardioprotective effects, including its beneficial impact on lipid profiles, glucose metabolism, and vascular function.
Common Questions
Why does heart health matter during perimenopause specifically?
Research suggests the perimenopausal transition, when oestrogen levels swing unpredictably, may create a metabolic environment that affects lipid profiles, blood sugar regulation, and vascular function. One large study found perimenopausal women had roughly twice the odds of a poor cardiovascular health score compared with premenopausal women, even after accounting for age. This matters because risk may begin accumulating years before menopause is officially reached, which is when most heart-health conversations traditionally start. Catching these shifts early gives you more room to act through movement, nutrition, sleep, and regular GP check-ups.
What cardiovascular risk factors should perimenopausal women pay attention to?
The study highlighted blood lipids and blood sugar as two areas that appeared to take a hit during perimenopause, with notably higher odds of poor scores in both. Blood pressure, body mass index, sleep quality, physical activity levels, and diet quality are also part of the picture, since they make up the broader framework researchers use to score heart health. Tracking these markers with your GP, rather than waiting for symptoms, is a practical way to stay ahead of changes. Even small, consistent improvements in diet and movement are associated with better outcomes over time.
Can lifestyle changes actually improve heart health during perimenopause?
Evidence suggests that lifestyle factors, including diet quality, regular physical activity, sleep hygiene, and maintaining a healthy body weight, are strongly associated with cardiovascular outcomes at any life stage. The encouraging finding from this research was that sleep scored relatively well across all groups, meaning the foundations for heart-friendly habits are already within reach. Focusing on what you can influence, like adding more fibre-rich foods, prioritising strength training, and managing stress, may support your heart as hormones shift. It's worth talking to your doctor about your specific situation, especially if you have a family history of cardiovascular disease.
How does fluctuating oestrogen affect the heart and metabolism?
Oestrogen does more than regulate reproduction; it also has cardioprotective roles in lipid metabolism, glucose regulation, and the health of blood vessel walls. During perimenopause, oestrogen doesn't decline steadily, it fluctuates, which researchers believe may create an unstable metabolic environment. This may help explain why risk markers like cholesterol and blood sugar can shift during these years rather than only after menopause. Understanding this connection can be a motivating reason to prioritise heart-supportive habits earlier rather than later.
When should I talk to my doctor about heart health in perimenopause?
If you're in your 40s or early 50s and noticing changes in your cycle, sleep, weight, or energy, it's a reasonable moment to bring up heart health at your next GP visit, even if you feel generally well. Requesting a baseline check of blood pressure, lipid levels, and blood sugar can give you a clear starting point to track over time. If you have a family history of cardiovascular disease, diabetes, or high cholesterol, starting this conversation sooner rather than later is especially worthwhile. Your GP can help you interpret results and refer you to specialists such as an Accredited Practising Dietitian for tailored nutrition guidance if needed.
Jess Mizzi, CPT
Certified Personal Trainer and founder of FitForHer. Specialises in women's life-stage specific fitness — postnatal recovery, perimenopause, and menopause. About Jess →
Medical disclaimer: This article is for informational purposes only and does not constitute medical advice. Always consult a qualified healthcare professional before making changes to your exercise or nutrition programme.