Board Thread:Theories/@comment-27683524-20160127003803/@comment-75.176.164.75-20160229170747

While it's technically not proven how long shifters live as opposed to other people, it's not that big of a logical leap. Case-in-point, the healing factors of Marvel characters Deadpool and Wolverine. Because of their enhanced regeneration, the cell degeneration of aging is constantly reversed, essentially making them immortal. Now, the exact limits of Shifter regeneration havent been discovered that we know, but it seems reasonable to assume that, even if the effect is weaker than the examples I just gave, Ymir (and Eren, and all the others) would still enjoy a longer life span than your average non-shifter. Besides, Zeke the Beast Titan could well be seventy or one hundred years old, kept alive by his Titan powers (Again, we don't know for sure, but it is certainly not 100% impossible)