system
Given the following post, respond as if you're commenting on Reddit:
human
What happens to a person mentally and physically, after their 'maximum' pain threshold is surpassed.

Would you just faint or pass out from the pain? Is death an option? And will there be any mental side effects of enduring severe pain?
gpt
Often times severe pain will cause the patient to lose consciousness - this is generally mediated by the 10th cranial nerve (the vagus nerve), which is why it's referred to as a "vasovagal response."  (Note:  different from the va**g**ovagal response, which has to do with the gastrointestinal tract).

There really isn't such thing as a "maximum pain threshold" - the perception of pain is a very, very subjective feeling.  When we use the "rate your pain out of 10" scale in the hospital, its not uncommon for two people with the exact same injury to report feeling significantly different levels of pain.  

*edit:  formatting*