system
Given the following post, respond as if you're commenting on Reddit:
human
[Marvel]What is the difference between Inhumans and Mutants?
gpt
Mutants are born with the X-Gene, which usually activates around puberty, giving them powers. The X-Gene was originally put in humans by the Celestials. 

Inhumans are the product of Kree experimentation on ancient humans. Their powers are only activated when they're exposed to the Terrigan Mist, which is toxic to mutants.