system
Given the following post, respond as if you're commenting on Reddit:
human
ELI5:Why is it that we get this natural cringe behavior when we hear certain sounds like nails on a chalkboard?

I realize there are people who don't react, but most people I know absolutely abhor the sound of a dog whistle or forks on porcelain plates. Why?
gpt
These sounds are close to alarm calls of macaque monkeys, or possibly of some predators.  This has led to the theory that these sounds are imprinted in our brains as unpleasant by evolutionary means.