Until a few years ago, I thought Japan had a long life But I found out the mechanism of statistics

Until a few years ago, I thought Japan had a long life

But I found out the mechanism of statistics

Developing countries have a short lifespan
I thought it was because medical care was delayed

However, when it comes to healthy life expectancy, ...

Japan also had a short lifespan for a while after the war

If you look closely
I had about 7-8 children ~
And soon after 1 to 3 people were born
Died in war when he was a child

The 6 survivors live to be 80 years old
Two dead are 10 years old on average

These 8 people are 500 years old in total
62, 5 years old on average

This is why developing countries have a low average age

Japan is long
The death toll of children is decreasing, and the number of plant humans is increasing.
Because there is an emergency treatment to avoid death in a traffic accident etc.

There are quite a few people living long in developing countries

The Japanese emperor also had good salt, so he's 100-140 years old.
Well, in Kojiki, but lol