Hair from infants gives clues about life in womb

Like rings of a tree, hair can reveal a lot of information about the past. And, as a team of researchers show in a study of rhesus monkeys, it can also reveal the womb environment in which an infant formed. It’s the first time researchers have used infant hair to examine the hormonal environment to which the fetus was exposed during development and it promises to yield a wealth of new information. The findings have significant implications for several fields, from neonatology to psychology, social science to neurology.

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