Does heart health really start slipping before menopause?
Yes. In this large NHANES study of 9,248 U.S. women, those in perimenopause were about twice as likely to have a low cardiovascular health score as women still having regular cycles. Average scores dropped from 73.3 before menopause to 69.1 in perimenopause and 63.9 after menopause was complete.
That gap matters because perimenopause has long been treated as a slow lead-up to menopause, not a danger zone for the heart. This new analysis uses the American Heart Association’s eight-point checklist for heart health, which scores things like diet, exercise, sleep, smoking, body weight, cholesterol, blood sugar, and blood pressure. When researchers lined up those scores against where each woman was in her reproductive life, the decline started earlier than most people would expect.
What the data show
The biggest drops were not random. Cholesterol numbers, blood sugar control, and diet quality all worsened the most as women moved from regular cycles into the perimenopausal years. By the time menopause was complete, the average score had fallen by nearly ten points compared with premenopausal women, a meaningful shift on a 100-point scale.
The doubled risk of having a low overall score during perimenopause is the headline finding. It suggests that the hormonal changes of this stage, especially the unpredictable swings in estrogen, push cardiometabolic health in the wrong direction even when a woman’s periods have not yet stopped. The study covered women aged 18 to 80, which makes the pattern across reproductive stages especially clear.
Dr. Kumar’s Take
This study reframes perimenopause in a way that matches what I see in clinic. Women come in feeling that something is off, but their cycles are still happening, so heart and metabolic risks get pushed to the back of the conversation. The numbers here suggest that is a mistake. By the time menopause is final, a lot of the damage to cholesterol, blood sugar, and diet patterns has already been set in motion. I would much rather catch a rising LDL or fasting glucose during perimenopause than chase it five years later, after the trend has hardened into disease.
How the scoring works
The American Heart Association’s eight-point checklist scores each person on four lifestyle habits and four health measurements. The habits are diet quality, physical activity, nicotine exposure, and sleep. The measurements are body mass index, blood lipids, blood sugar, and blood pressure. Each of the eight gets a score from 0 to 100, and the average becomes a single number. A higher score means a healthier cardiovascular profile, and a low score signals high future risk.
In this analysis, the steepest declines clustered in the measurement side of the scorecard, especially cholesterol and blood sugar. Diet quality also slipped. That combination is exactly what drives heart attacks and strokes in older women, which is why catching it during perimenopause is so important.
Why this matters
Estrogen is not only a reproductive hormone. It helps keep cholesterol in check, supports healthy blood vessels, and influences how the body handles sugar. When estrogen levels start fluctuating during perimenopause, those protective effects become less reliable. The authors frame this stage as a previously overlooked window of opportunity for prevention, because the damage shows up in lab numbers before symptoms appear.
For most women, perimenopause spans several years in their forties and early fifties. That is a long runway in which lifestyle changes, screening, and treatment can change the trajectory. Waiting until menopause is over gives up that runway entirely.
Practical Takeaways
- Ask your doctor for a full cardiovascular check, including cholesterol, fasting glucose, and blood pressure, once you start noticing perimenopausal changes like irregular cycles, hot flashes, or new sleep problems.
- Focus your eating pattern on vegetables, fruit, whole grains, fish, and legumes during perimenopause, since diet quality was one of the score categories that fell the most.
- Build at least 150 minutes of moderate activity into each week, because exercise directly improves the lipid and glucose numbers that decline the fastest during this stage.
- Treat perimenopause as the start of cardiovascular prevention, not a quiet pause before it. Small changes now have more leverage than larger ones after menopause is complete.
Related Studies and Research
- Why perimenopause triggers first-time depression in healthy women
- HPA axis and depression across women’s reproductive life
- Smoking and heart disease: the life-saving benefits of quitting
- Meditation and cardiovascular health: a scientific statement
FAQs
How is perimenopause different from menopause when it comes to heart risk?
Perimenopause is the transition phase, often lasting several years, when estrogen levels swing unpredictably and periods become irregular. Menopause itself is the single point in time twelve months after the final period. This study shows that the heart and metabolic decline does not wait for menopause to finish. It begins during perimenopause, while cycles are still occurring, which is why screening should not be postponed until after the final period.
Can lifestyle changes actually reverse the decline in cholesterol and blood sugar seen in perimenopause?
Lifestyle changes can meaningfully improve cholesterol, blood sugar, and blood pressure at any stage, and the eight-point checklist used in this study is built around exactly those habits. The score is sensitive to changes in diet, exercise, sleep, and weight, so improvements in daily routines show up in measurable lab numbers. The earlier these changes start during perimenopause, the more room there is to bend the curve before menopause locks in higher baseline risk.
Should women in perimenopause consider hormone therapy specifically to protect their hearts?
This study did not test hormone therapy, so it cannot answer that question directly. The decision to use hormone therapy depends on symptoms, personal risk factors, and individual medical history, and it should be made with a clinician who knows your full picture. What this study does suggest is that the cardiometabolic shift during perimenopause is real, which makes the broader conversation about prevention, including whether hormones play a role for you, worth having sooner rather than later.
Bottom Line
Heart health does not wait for menopause to finish. In nearly 10,000 American women, those in perimenopause were about twice as likely to score poorly on the American Heart Association’s eight-point cardiovascular checklist, with cholesterol, blood sugar, and diet quality leading the decline. Perimenopause is the window where prevention pays off the most, and treating it as a serious cardiovascular stage rather than a hormonal background event could change long-term outcomes for millions of women.
