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Why A Child’s “Next 1,000 Days” Are Critically Important 

November 15, 2025

The National Institute for Early Education Research has contributed to a two-part research series published in The Lancet examining the critical developmental period for children aged two to five years old, known as "the next 1,000 days. " The research reveals that approximately 182 million children aged three and four in low- and middle-income nations lack access to nurturing care that supports healthy development. The studies demonstrate that high-quality early childhood care and education programs produce significant positive outcomes for children, while the failure to invest in these programs costs societies eight to nineteen times more than the initial investment would require.

Who is affected

  • 181.9 million children ages 3 and 4 in low- and middle-income countries (LMICs)
  • Young children globally from ages two to five (during "the next 1,000 days")
  • Families across the globe who need support in providing nurturing care
  • Vulnerable populations requiring financial support
  • Societies experiencing significant losses from lack of investment in early childhood education

What action is being taken

  • The National Institute for Early Education Research is reporting on international research findings
  • A two-part Lancet research series is being published and discussed
  • The Early Childhood Development Action Network (ECDAN) is hosting webinars to share research details and exchange knowledge among its 350 partners and 30,000 individuals

Why it matters

  • The research demonstrates that failing to invest in early childhood care and education results in massive societal losses—potentially 8 to 19 times greater than the cost of providing these programs. High-quality early childhood care and education programs produce positive short- and long-term outcomes for children's development, while nearly 182 million young children in lower-income countries currently lack nurturing care, jeopardizing their developmental trajectories and future potential.

What's next

  • No explicit next steps stated in the article

Read full article from source: The San Diego Voice & Viewpoint

Why A Child’s “Next 1,000 Days” Are Critically Important