Arteries appear to be less clogged in those who nurse infants, study finds,,

MONDAY, Dec. 21 (HealthDay News) -- Although many women choose to breast-feed because of the numerous health benefits it offers their offspring, new research suggests that breast-feeding may also help the health of the mothers' hearts later in life.

In a study of nearly 300 women, researchers found that those who had not breast-fed were much more likely to have calcification or plaque in their coronary artery, aorta and carotid artery. When calcifications and plaque build up in the arteries, blood flow can be reduced, and, if enough of these deposits build up, they can cause a heart attack or stroke.

"Women who had not breast-fed were more likely to develop changes that might lead to symptomatic heart disease," said the study's lead author, Dr. Eleanor Schwarz, an assistant professor of medicine, epidemiology, obstetrics, gynecology and reproductive sciences at the University of Pittsburgh Center for Research on Health Care.

Results of the study will be published in the January issue of Obstetrics and Gynecology.

Schwarz and her colleagues had previously looked at breast-feeding's effect on older women, and that study found that post-menopausal women who had breast-fed were less likely to report having heart disease. Another study on breast-feeding from a different research group recently reported in the journal Diabetes that women who breast-fed were less likely to develop metabolic syndrome, a clustering of risk factors that indicate an increased risk for heart disease.

The current study included 297 women who'd had at least one baby. At the time of the study, they were 45 to 58 years old, had never been diagnosed with heart disease and had no known symptoms of heart disease.

The researchers used two imaging techniques -- electron beam tomography and ultrasound -- to assess the health of th
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