system
Given the following post, respond as if you're commenting on Reddit:
human
[X-men] Does Colossus age in his metal form?

Bonus questions:
Is he susceptible to rusting?
If he does age, but doesn't rust, does a damp environment speed up his aging? Conversely, would an arid one slow it down?
gpt
Nope. In one story he was sealed away and trapped like that in an environment with no air, food, or water for seven (?) years. When he came out it and reverted to human it was as if he hadn't aged a day.