https://www.studyfinds.org/dropping-f-bomb-increases-pain-tolerance/
So... accept no substitutes, I guess.
The authors recruited volunteers to test the new words alongside a traditional swear word and a control word while their hands were submerged in ice water. They found that new swear words did not raise pain tolerance as much as swearing did, despite participants rating the new words as emotion-evoking and humorous.
“From a young age we typically learn to associate them with high-stress situations and that they are forbidden. The study found that these strong sentiments cannot be mimicked by newly created swear words,” says Dr. Stephens. “Although the words we created, twizpipe or fouch, were shown to be similar to existing swear words in that they were rated as emotion evoking and humorous, they didn’t cut it when it came to pain relief. Repeating the f-word was the best option for increasing tolerance to pain.”
So... accept no substitutes, I guess.