system
A chat on subreddit /r/me_irl
human
It's quite literally a phenomenon. It is a defense mechanism where we know we experienced pain but forget what it physically felt like because the reward outweighs the sacrifice.

Take, for instance, a police officer putting themselves in the line of fire more than once. Or a firefighter running into a burning building multiple times.

A sense of responsibility mixed with adrenaline and gain is an incredibly powerful thing.
gpt
Thanx for the explanation, but I was only joking.