
Audio Article: Babies can tell who has close relationships based on one clue: saliva
MIT News
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Preventing Pandemic Related Hygiene in Infants
Researchers say saliva sharing is likely an important cue that helps infants to learn about their own social relationships and those of people around them. The researchers did their first set of studies shortly before covid 19 lockdowns began, with babies who came into the lab with their families. In future work, the researchers hoped to perform similar studies with infants in cultures that have different types of family structures.
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