Not just cultural differences. Things like car accidents and murders also play a disproportionate role.
If nation A has 60 people living to 79, and nation B has 59 people living to 80 and 1 person being murdered at 20, A and B have the same mean life expectancy (of 79).
Though I suppose you could call things like murders and road safety "cultural".
If nation A has 60 people living to 79, and nation B has 59 people living to 80 and 1 person being murdered at 20, A and B have the same mean life expectancy (of 79).
Though I suppose you could call things like murders and road safety "cultural".