Links between genetics and cognition change across childhood

Rare DNA changes are most strongly linked to cognition in early childhood, but the link fades as children age, while common DNA changes show stronger links later in childhood, a new study finds. The research was reported ...

Why the back? How stroking calms infants and mouse pups

Across cultures, the way we soothe an unsettled baby tends to look much the same: hold them close and gently rub their back. The act is so familiar that it's easy to forget how little is actually understood about why it works.

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