As it turned out, the opposite seems to be true.

The researchers think that the increase in pain tolerance occurs because swearing triggers the body's natural "fight-or-flight" response.

I favored old men who knowed how ta cuss,
was just like a good Kipling rhyme.
I've chalked up some years,
I'm ageing I fears.
"Blankety blank, four four time!"

by googleit

now I feel better!