system
Given the following post, respond as if you're commenting on Reddit:
human
ELI5: Why do things like impact (getting slapped on bare skin) or cracking your knuckles hurt a lot more when you're really cold? Why is it not the opposite way round since freezing can cause numbness?

For example catching a ball or getting hit by a ball or paintball on bare skin hurts way more when it's cold outside rather than warm.
gpt
Basically, you are getting a double dose from your nerves. Your nerves have receptors for pain and for things like extreme temperatures. So effectively you’re getting the feeling of both of those at once.