system
Given the following post, respond as if you're commenting on Reddit:
human
[Venom] Does having a symbiote slow aging?

Given a compatible symbiote can repair serious damage to their host, I have to wonder if they might slow or even stop a lot of the negative effects of aging. Obviously it would only work with an actual symbiotic relationship like Venom and Eddie have though. Maybe the symbiote can't fix everything so you'd still age eventually, but even if it can only fix the symptoms rather than the cause, I'd imagine that alone could extend your healthy lifespan significantly.
gpt
Kind of. The host will still age, but the symbiote can do a lot of patchwork.

In the alt universe story, Venom: The End, Eddie is kept alive for eons. When his organs fail, the symbiote replaces them with its own goo. When his own nuerons expire, the symbiote replaces them.

But as a result, the line between symbiote and host is blurred. Brock's had so many of his memories and body parts replaced by Venom he isn't fully himself anymore.

That's assuming there's a symbiotic relationship like the one between Venom and Eddie. A symbiote is also capable of dominating it's host and absorbing so much energy that the host ages incredibly fast. There's a What If? story where Venom stays bonded with Peter, drains him of his spider powers and then abandons him for a new host, leaving Peter an old man.