Women’s Hearts: Why Cardiovascular Risk Increases After Menopause

Cardiovascular disease (CVD) remains the leading cause of death globally. While women often present with less atherosclerotic plaque in their coronary arteries compared to men, recent research indicates this doesn’t necessarily translate to equivalent protection against major cardiac events. A growing body of evidence suggests that women experience an increased risk of heart attack and chest pain even with lower levels of arterial blockage, and this risk accelerates after menopause.

The Changing Landscape of Women’s Heart Health

A study published in Circulation: Cardiovascular Imaging analyzed data from over 4,200 adults, more than half of whom were women, all experiencing stable chest pain but without a prior history of coronary artery disease. Participants underwent coronary computed tomography (CT) angiography to visualize their heart and blood vessels and were followed for approximately two years. [1]

The analysis revealed that 55% of women had plaque in their coronary arteries, compared to 75% of men. The median plaque volume was lower in women (78 mm³) than in men (156 mm³). Despite these lower levels, women were just as likely as men to experience death from any cause, a nonfatal myocardial infarction (heart attack), or hospitalization for chest pain (2.3% vs. 3.4%).

Risk Increases at Lower Levels of Arterial Blockage

The study highlighted a critical difference: cardiovascular risk in women begins to increase at a lower percentage of arterial narrowing caused by fatty deposits than in men. For women, the risk increased with an arterial loading of 20%, while men didn’t see a significant increase until 28%. As plaque volume increased, the risk escalated more rapidly in women compared to men.

Dr. Borek Foldyna, lead author of the study and a specialist in radiology at Harvard Medical School, explained, “Our results show that women are not ‘protected’ from coronary events, even if they have a lower volume of fatty deposits in the arteries. Because women have smaller coronary arteries, a reduced amount of plaque may have a greater impact. Moderate increases in plaque burden appear to be associated with a disproportionate risk in women, suggesting that standard definitions of increased risk may underestimate the risk in women.” [1]

Biological Differences and Cardiovascular Disease

Experts emphasize that cardiovascular diseases manifest differently in women and men. Biological differences can influence risk factors, symptoms, and treatment responses. Recognizing these distinctions is crucial for reducing the burden of cardiovascular disease in women. [1]

According to the American Heart Association (AHA) 2026 report, cardiovascular disease was responsible for the deaths of 433,254 women of all ages in the United States, accounting for 47.3% of deaths attributable to these conditions.

The Menopause Connection

The menopausal transition plays a significant role in increasing cardiovascular risk for women. As women move through menopause, they experience hormonal changes, including decreased estrogen levels. This is often accompanied by increased abdominal fat, leading to metabolic syndrome – a cluster of conditions including abdominal obesity, high triglycerides, low HDL cholesterol, high blood pressure, and high blood sugar. [2] These changes contribute to arterial thickening and stiffening, accelerating the development of cardiovascular disease. [2] [4]

Women who experience natural menopause at a later age may have a lower risk of cardiovascular disease and death. [2]

Key Takeaways

• Women are at risk for cardiovascular disease even with lower levels of arterial plaque compared to men.
• Cardiovascular risk increases in women at a lower percentage of arterial narrowing.
• The menopausal transition significantly impacts cardiovascular health due to hormonal changes and metabolic shifts.
• Biological differences between men and women influence the development and progression of cardiovascular disease.