system
Given the following post, respond as if you're commenting on Reddit:
human
ELI5: Why is it important not to fall unconscious after you suffer a concussion?
gpt
It has nothing to do with consciousness affecting your recovery.  It's all about them being able to ask you questions and observe your responses.  If you're awake with your eyes open they can tell if your pupils dilate properly or if your speech is slurred or if you're even aware of your surroundings.  These are all important tests to see how severe your concussion is.  Without that, the only option is a brainscan.