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Women and Heart Disease

The risk of heart disease in women increases with age. Heart disease is the leading cause of death in women over 40 years old, especially after menopause. Every year, more than 400,000 U.S. women die of heart disease. This translates to approximately one death every minute.

Why Does a Woman's Risk of Heart Disease Rise With Age?

Menopause is a normal stage in a woman's life; it comprises any of the changes a woman experiences either before or after she stops menstruating. As menopause nears, the ovaries gradually produce less estrogen (a female hormone), causing changes in the menstrual cycle and other physical changes.

The most common symptoms of menopause are hot flashes, night sweats, emotional changes, and changes in the vagina (such as dryness).

Menopause usually occurs naturally in women between ages 45 and 55. However, loss of estrogen can also occur if the ovaries are removed during surgery (such as during a total hysterectomy) or if a woman goes through early menopause.

Why Is Heart Disease Associated With Menopause?

The loss of natural estrogen as women age may contribute to the higher risks of heart disease seen after menopause. Other factors that may play a role in postmenopausal risks of heart disease include:

  • Changes in the walls of the blood vessels, making it more likely for plaque and blood clots to form.
  • Changes in the level of fats in the blood (LDL, or "bad" cholesterol increases and HDL, or "good" cholesterol decreases).
  • Increases in fibrinogen levels (a substance in the blood that helps the blood to clot). Increased levels of blood fibrinogen are related to heart disease and stroke since it makes it more likely for blood clots to form, narrowing the arteries and reducing blood flow to the heart.

 

How Can Menopausal Women Reduce Their Risk for Heart Disease?

First and foremost, "traditional" risk factors for heart disease should be addressed after menopause. Women with the lowest risk of heart disease are those who:

  • Avoid or quit smoking.
  • Lose weight and/or maintain their ideal body weight.
  • Exercise for for more than 30 minutes more than three times per week.
  • Follow a diet low in saturated fat (<7% daily amount); low in trans-fat (partially hydrogenated fats such as margarine or shortening); and high in fiber, whole grains, legumes (such as beans and peas), fruits, vegetables, and fish.
  • Treat and control medical conditions such as diabetes, high cholesterol, and high blood pressure that are known risk factors for heart disease.

 

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