Socio-economic status and health
Life expectancy is probably one of the best and most used measures we have for an objective quantification of health because it is a resultant of genetic and environmental factors of importance for life.
Life expectancy is a statistical measure of the average time a person is expected to live, based on year of birth, current age, sex, and other demographic factors. The most commonly used measure is life expectancy at birth (LEB), which can be defined as the average number of years that a newborn is expected to live if current mortality rates continue to apply at a given year like 2020.
Considering factors of importance for longevity, we notice a striking similarity to factors of importance for good brain functions (as outlined in some previous E-newsletters).
Read more about the marked differences in life expectancy between different geographical areas and their underlying causes in the Lifebrain e-newsletter November 2020.