British Birth Cohort Study - A long-term study looking at early life and later outcomes.

Social determinants of health - Social factors that influence long-term health.

Socioeconomic status - A measure of economic and/or social ranking.

Early life inequality - This leads to later inequality for health and success.

Cuba language scores - Results are high, likely due to early years investments.

Socioeconomic gradient - The relationship between SES & devt outcomes.

Quebec early education program - This program is already providing a good financial return.

Disadvantaged children - These children benefit greatly from early investments.