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Is there a maximum threshold of pain a Human can experience, beyond which point there is no noticeable difference?

I ask this question in part to better understand the definition of pain and its different facets, e.g. Is there a quantitative measure of pain? Are there various types of pain, or are they all part of the same fundamental experience?

It would also be interesting to know since I could perhaps be allowed to claim:

"well at least I know I cannot feel more pain than X"

Thank you for your opinions.

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it only goes to 10. ha ha just a little levity – shigeta Nov 29 '13 at 19:08
"But this one goes to 11!" – MattDMo Nov 29 '13 at 19:13
Haha! Interesting how many scales there are, cheers – hello_there_andy Nov 29 '13 at 19:22

When the pain receptors are fully loaded then it's not possible to excite these receptor greater. However the perception of pain has a large psychological component and is not well understood. Your brain could modulate your perception of pain naturally or due to illness.

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