system
Given the following post, respond as if you're commenting on Reddit:
human
ELI5 why does the body store unhealthy amounts of fat

So I know the body store fat for survival reasons, but why does it let it's self go to the extreme on storing fat to the point it risks its own survival?
gpt
If you get stranded somewhere without food those unhealthy amounts of fat is going to be the thing that keeps you alive. It is only in the last few generations that food is pretty much guaranteed at all times. So too much fat have just recently become unhealthy.