Demigods do typically end up living longer than humans, if they aren't murdered in battle first. More often than not, demigods and demi-titans are in the prime of their youths. And mostly non-digested.

Regular humans are allowed to be played. And I've got an update as to how character abilities work for those of you who want a full explanation:

[hider=More knowledge, incoming]Demititans: Stronger than demigods, but don't have a God Burst because their bodies couldn't contain this amount of energy. Doesn't apply to titans such as Prometheus and Epimethius whose strengths weren't pure nature energy, but rather, within the mind.

Human Heroes: Have unique abilities, and are as strong as demigods, and stronger than some. Their strength comes from them, rather than a deity, which is why they don't have a God Burst.

Demigods: More common than either of the other two, abilities are derived from their patron/ancestor and their abilities' strengths can fluctuate depending on how much glory they bring to their parents. (Ex. Heracles.) The more a given demigod uses their God Bursts, the more they begin to develop traits similar to their ancestor/patron.[/hider]

And, I have to apologize for the sporadic additions to the lore, I've been slowly adding onto it more and more as interest picks up.