Heart risk doubles during the menopausal transition
Women in perimenopause are roughly twice as likely to have poor cardiovascular health compared to premenopausal women. That difference holds even after adjusting for age.
The menopause transition is not just a reproductive event. The hormonal shifts involved affect the entire body. Estrogen helps protect blood vessel walls from damage and inflammation. As estrogen levels decline, that protective effect diminishes and the heart and vessels become more vulnerable.
The researchers compared three groups: premenopausal, perimenopausal, and postmenopausal women. Women in the perimenopausal group scored significantly worse on a composite measure of cardiovascular health. The age-adjusted result suggests the transition itself is a risk factor, not just aging.
Multiple markers, one pattern
The study examined blood pressure, blood sugar, cholesterol, body weight, and physical activity. Perimenopausal women scored worse on nearly every measure compared to their premenopausal counterparts. The pattern persisted into postmenopause, but the sharpest decline appeared during the transition itself.
This has direct implications for prevention. If risk rises during perimenopause rather than after it, that is the window for intervention. Yet most clinical attention focuses on postmenopausal women. The transition phase is routinely underestimated as a risk period.
Earlier screening, better outcomes
The findings support earlier cardiovascular screening in women, starting when the transition begins rather than after menopause is confirmed. Monitoring blood pressure, cholesterol, and blood sugar during this phase can help detect problems early.
Women themselves often report symptoms during the transition that are not recognized as cardiac: fatigue, sleep disruption, mood changes. These may be early signs of cardiovascular change. Greater clinical attention to this period is overdue.