average lifespan of the elite roman class?

[antisocialmunky]

Yes but our water is treated to kill almost all bacteria and other bad stuff in it. Their's isn't.

"Fair enough" about the rest. Average life span of emperors who died a natural death to Marcus Aurelius is 62.5 years, or an increase of about 5 years.
The fact that the list automatically exclude all deaths of the imperial family before the age of 39 remains unchanged (going by West level 3 female again, out the people who survive at age 15, just above a third would reach age 40).
Of these 11 emperors, 4 (36.4%) or 5 (45.4%) died of sickness and disease. Oh wow ouch. Looks to me medical ability and sanitation/hygiene actually increased to late empire. So much for decline.

EDIT: On another note, remaining life expectancy at age 40 is 21.1 years. So these 11 emperors on average only lived 1.4 years more than the average Jane (not Joe) who survived to age 40. Such are the fruits of imperial power

I'm not sure how you're getting better hygene out of those statistics...

As to emperors, how much of the adult population(in this case 15) reaches the age of 40? 1/3rd? So if you look at the emperors as a special group that survived to adulthood, 1/2 the emperors reaching the age of 40 is better than the general population of 1/3rd.

However, this is biased. Would be interesting to see that random people with the right genetics cna keep on trucking regardless.

[Parallel Pain]

I'm not sure how you're getting better hygene out of those statistics...

As to emperors, how much of the adult population(in this case 15) reaches the age of 40? 1/3rd? So if you look at the emperors as a special group that survived to adulthood, 1/2 the emperors reaching the age of 40 is better than the general population of 1/3rd.

However, this is biased. Would be interesting to see that random people with the right genetics cna keep on trucking regardless.

Well first most of these emperors (and most Roman emperors period) became emperor AFTER the age of 30 to 40. Out of these 11 emperors, only Augustus and Lucius Varius became emperor before the age of 40, at ages 36 and 30 respectively. What I am saying is that the dead imperial princes isn't counted in these averages, and if they were the number would go down.

Second, out of 14 emperors who die of disease, 5 comes in the first 11 (45.4%). The rest of 9 comes in the last 28 (32%). In other words on average the chance for an emperor who dies of natural causes coming after Marcus Aurelius dying of disease is less than emperors coming before. Though yes it is very likely due to unrelated reasons, but those numbers still stand. If there isn't an increase in health care and sanitation, there isn't a decrease either until at least after the western empire fell.

[artavazd]

Yes the elites of the time lived for a long time. King Tigran (Tigran the Great) died a natural death in his old age (late 70's early 80's)

[Parallel Pain]

Meanwhile Lucius Caesar, grandson of Augustus, died at age 18.
Augustus's line died out less than 70 years after his death.

[Apázlinemjó]

Yes the elites of the time lived for a long time. King Tigran (Tigran the Great) died a natural death in his old age (late 70's early 80's)

Aye, Mithridates Eupatór was killed at 71, so these guys had a pretty long lives.