Child well-being

This archive tracks real progress in child well-being — from advances in nutrition, education, and mental health to policies that expand opportunity for young people worldwide. Each story focuses on what’s working and why, grounded in evidence rather than optimism alone.

Baby sleeping, for article on SIDS biomarker

Landmark study finds first biomarker to detect babies at risk of SIDS

SIDS has resisted explanation for generations, but researchers have now found the first biological signal present at birth that distinguishes vulnerable infants from others. Australian scientists discovered that babies who died of SIDS had measurably lower levels of an enzyme called butyrylcholinesterase — which helps regulate the brain’s arousal response — in routine newborn blood samples. That same heel-prick screening already happens in hospitals worldwide, meaning a future test could fit into existing programs with little disruption. This finding gives researchers a concrete target for the first time, and brings the dream of preventing these devastating losses meaningfully closer.