Women who breastfeed more during their reproductive years are less likely to gain weight and build up fat around their abdomen or around the heart, and thus lower their risk of cardiovascular diseases, according to a study.
Various studies over the years have demonstrated that women who breastfeed have
a lower risk for developing cardiovascular disease and diabetes. But the
mechanisms behind these risks were not fully understood.
The new study, published in the Journal of Clinical Endocrinology &
Metabolism, focussed on the presence of excess fat, specifically visceral and
pericardial fat in lactating women for 30 years.
"After accounting for lifestyle behaviours and other risk factors across
the life course, the lower visceral and pericardial fat among women with longer
lactation persisted," said Erica P. Gunderson, Professor at the Kaiser
Permanente's Bernard J. Tyson School of Medicine in the US.
"... yes, breastfeeding more is actually beneficial to a woman's health
and can help to prevent cardiovascular disease," said Duke Appiah,
Assistant Professor at the Texas Tech University Health Sciences Centre in the
US.
Visceral fat is typically stored within the abdominal cavity near the stomach,
liver and intestines. It can potentially increase the risk of developing heart
attacks, Type 2 diabetes, stroke, breast and colorectal cancer and Alzheimer's
disease.
Pericardial fat is a deposit of fatty tissue located on the outside of the
heart, and also may influence certain cardiovascular conditions.
Because these fats are related to insulin production and other cardio metabolic
factors, weight change could influence the relationship between breastfeeding
and these fats. An increase in pericardial fat also puts additional weight on
the heart and can affect its contractivity, or how it beats, which also could
influence other cardiovascular diseases, the researchers noted.
For the study, Appiah used a long-term study of cardiovascular disease that
includes more than 5,000 adult women who were aged 18 to 30 years. The
participants were monitored for more than 30 years.
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