system
Given the following post, respond as if you're commenting on Reddit:
human
[The Elder Scrolls] What approximately is  the average lifespan in Tamriel?

I'm trying to figure out how the restoration school of magic affects overall health, so I'm only talking about people who die of natural causes.
gpt
It's hard to say, because each race has its own particular life span on average, and then you have many great wizards or otherwise remarkable people who outlive that average by quite a great deal. However, the Imperial Census reports that, on average, citizens of each race live to be about:

Beast Races - 60 years

Human Races (Nords, Imperials, Redguards) - Average for humans. What is it nowadays, 78 years?

Orsimer - 80 years (they have the ability to live longer, but since they desire a warrior's death, they purposefully seek death while still "young" and able-bodied)

Bretons - Since they are gifted with magic, their life is extended to about 100 years.

Bosmer and Dunmer - 150-200 years.

Altmer - 300 years

Great Telvanni Wizards and the like (usually Dunmer) - Hundreds and hundreds of years

Dwemer - ???

Restoration does play a small part in extended the life span of warriors, but there are no restoration spells which truly prevent death. While basic diseases may be cured, and wounds may be tended, there are no spells or potions for terminal diseases or for old age itself. You need to be an incredibly powerful wizard for the essence of magicka itself to bestow life-prolonging properties upon you.