Life Expectancy represents the health dimension of the Human Development Index (HDI).
The HDI, developed by the United Nations Development Programme (UNDP), is a composite index that measures the overall development of a country. It is based on three key dimensions:
Health: Measured by Life Expectancy at Birth, which reflects the overall health and longevity of a population.
Education: Measured by Mean Years of Schooling for adults and Expected Years of Schooling for children.
Standard of Living: Measured by Gross National Income (GNI) per capita.
Thus, life expectancy is a key indicator of the health aspect of human development.