Crying triggers changes in how a newborn baby gets their oxygen. But not all new babies cry, and it’s not always a problem.
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Articles on Umbilical cord
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All mammals who get nutrients from their parent via a placenta before birth are left with a belly button. It’s a visual reminder of this original connection.
Umbilical cord blood is not a waste product.
The umbilical cord drops off a baby’s belly button after birth. What happens on the inside is far more fascinating.
