Breastfeeding Strains Bones, But a Brain Hormone May Protect
Giving birth and caring for a newborn can be tough on a mother’s bones. Estrogen, which regulates bone growth, drops sharply after birth, and lactation depletes calcium from the skeleton. However, nursing mothers still maintain strong, dense bones. A study in mice suggests a brain-released hormone might be the reason. Researchers report in Nature on […]
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