Having a natural predisposition to sudden infant death syndrome, sleeping environment and being in a critical period of development are the factors that contribute to an infant’s overall risk of SIDS, according to a study in Pediatrics. Researchers analyzed the rates of SIDS in the US between 1983 and 2012 and found a 38% decline in SIDS between 1992 and 1996 after the AAP recommended placing babies on their backs to sleep. LiveScience.com (12/2)