system
Given the following post, respond as if you're commenting on Reddit:
human
[Marvel] does Colossus' body temperature change when he becomes metal?

Also if you touch him is he cold like metal or warm like a human?
gpt
His body temperature doesn't change, but his thermal conductivity goes way up.  That means he will *feel* colder if the air temperature is lower than your body temp because the heat is transmitted away from your skin more quickly.  Eventually his body will equalize with the surrounding temp and will actually be colder, assuming he's not producing lots of heat through friction.

On a hot day, though, the opposite will happen.  His metal form will conduct the ambient heat more quickly and he'll feel hot.