
THURSDAY, Jan. 26, 2023 (HealthDay News) -- Researchers have long struggled to figure out what causes a seemingly healthy baby to die suddenly in the first year of life, with an array of possible genetic and environmental factors to choose from.Now a large, Danish study has found that in families where one child has succumbed to sudden infant death syndrome (SIDS), a younger sibling’s risk appears to quadruple.“I am not very surprised by these findings,†said Dr. Michael Goodstein, a member of the American Academy of Pediatrics Task Force on SIDS, who reviewed the study.Goodstein, division chief of newborn medicine with WellSpan Health in York, Pa., noted that “other studies, including ones in the U.S. and the U.K., have shown a small but real increase in the risk of SIDS for...