system
Given the following post, respond as if you're commenting on Reddit:
human
ELI5:When in a serious accident and/or near death, why does going to sleep lead to death?
gpt
Going to sleep doesn't lead to death, but the inability to wake someone or even get them to respond to pain indicates that something is very, very wrong and may lead to death.  So when someone is injured you make sure they can still wake up or respond in some way.