Is the average human age increasing or decreasing

The average human age is the sum of all living humans divided by the total number of all living humans.

Humans are constantly being born while other humans are constantly dying. Also, the age of every living human is always increasing as long as they remain alive. The world population is definitely increasing. What about the average human age?

Due to decreases in infant mortality rates in underdeveloped countries,
and a higher birth rate in these countries, the average human age is decreasing.

Note: Some persons don't understand the difference
between average age and average life expectancy.

From a mathematical stand point, on average, there is one birth every 7 seconds and one death every 13 seconds. This averages out to a net gain of one person every 10 seconds. This means that, on average, human age is increasing.

From a historical and general trend stand point, the average age in the 1600s was appx. 40 years old where as currently it is appx. 85 years old.

Therefore, the average human age is definitely increasing.

Everyone's age is always increasing. It's crazy. Last year I was 14, now I'm 15.

See
http://en.wikipedia.org/wiki/Life_expect…

decreasing. obesity and stuff like that especially amercans