“Life expectancy is a statistical measure of the average time an organism is expected to live, based on the year of its birth, its current age, and other demographic factors including gender.” – Wikipedia
Shortening is proportional to the ideological view of life. – Charles Robert Darwin
“The part of life we really live is small. For all the rest of existence is not life, but merely time.” – Lucius Annaeus Seneca
Data source: Gapm, Mattias, IHME, UN