system
Given the following post, respond as if you're commenting on Reddit:
human
[Avatar, Korra] How in the hell is Zuko still alive?

Wasn't he older than Ang for several years? I mean that guy is over a hundred!
gpt
Zuko's in great shape physically and always has been. And, as a member of the Fire Nation royal family, he's likely had easy access to good food and medical care pretty much his whole life. All of that coupled with frequent exercise that comes from being a fire bender and some lucky genetics and 89 isn't that implausible.