Enlighten me, please.
Can elves live up to 1000 years?
"I think Straw will be a very old man before 'someday' comes, Berry. Elves live for a very long time." Katisha's face briefly wore the envious, wistful look humans got when contemplating the thousand-year lifespan Elves had been granted by the gods. True, few ever actually lived that long as disease and violence took their respective tolls. But they could. And one or two of them actually did." - The Real Barenziah
Only high elves at this point, if I'm not mistaken. I forget if wood elves can live that long, but I don't think they are equal to high elves. Dark elves can as well, but again, not as long as high elves. I think they were supposed to have lost some of their lifetime length through the change from the chimer or something. And the Orcs apparently live about as long as most men. From their cursed creation or something.
I don't have concrete evidence to point to sorry, you'll have to find a loremaster... Also, khajiit and argonian are said to be nearly the same as men in lifetime.
Ah! This dreaded question. I only know officially how long the Dunmer live, from an interview with Alvur Relds... I'll scrounge it up on the UESP. Here it is! It's the second last question.
My headcanon still states that Bosmer and Altmer live longer than that (Altmer the longest due to their magicka and possible life-prolonging potions/spells; Bosmer not quite as long because that much meat can't be good for anyone, even if Y'ffre blessed them or something; and Dunmer the shortest out of the three because of... um... lung cancer?? Azura's curse??). As for Orsimer or Falmer or Dwemer, I got no ideas.
I don't usually think it works like that. I often think elves grow into children relatively fast. Humans develop from babies into kids and then into teens and onward in such a short time, while afterwards it slows down a lot. I apply that principle to elves as well, though the stages do still take longer... So, looking at my list, a seventy-year-old Altmer would be in his/her prime (like mid thirties in human years), while an Altmer with the appearance of a fifteen-year-old would be around twenty. I hope that makes some sense, but that's how I think of it anyhow.
Dah people get so defensive about lore, don't they? I think you can think whatever you like. If it's false, whatever. You don't need to be 100% right about a video game. I don't think there's any official lore for any of the years. Besides, Bethesda could make up anything off the top of their heads to answer our questions -- maybe it's better if we just use our own imaginations.