The Benefits of Profanity
It appears that the use of swearing, cursing and bad language isn’t all bad. Applied judiciously, use of the “F word” and other assorted niceties can build group solidarity, release stress as well as get an audience’s attention. Cussing works because it seems to operate at a more basic level in the brain’s circuitry.
Profanity Works - 37Signals, Aug 20 2008