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Study: Babies’ low serotonin levels cause SIDS
USA Today - Liz Szabo

Researchers may have solved the mystery of what makes some babies vulnerable to sudden infant death syndrome, or SIDS, which kills more than 2,300 babies a year. Infants who died of SIDS had low levels of serotonin, a brain chemical that helps the brainstem regulate breathing, temperature, sleeping, waking and other automatic functions, according to an autopsy study in today’s Journal of the American Medical Association.

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