Saying the F-word (or any other fun expletive!) can actually help you feel better, British researchers find. Experts asked 64 college students to hold their hands in a bucket of ice water for several minutes. One group was allowed to repeat a curse word of their choice and another group said a more boring non-expletive word. The group that got to curse could withstand the ice water for a long period of time and also reported a reduced perception of pain.