- Another reason to love scientists. Researchers at Keele University in England are saying they’ve shown swearing can actually lessen pain. They asked participants to put their hands in iced water and say either one of five swear words or one of five words to “describe a table.” As you may have guessed, the cussers kept their hands in longer – because the words brought on a “fight-or-flight” response, accelerated their heart rate and heightened aggression. source