We've posted this several times before, and every now and then there's some new research claiming that swearing does indeed help you feel better. Your potty mouth could save you a mouthful of asprin! Thank science for that!
Research conducted by Richard Stephens of Keele University's School of Psychology says that swearing can elicit an emotional response known as "stress induced analgesia", which is more commonly known as "fight or flight" with a burst of adrenaline.
Adrenaline is a wonder drug. It helps you get through pain until the pain goes away. But that doesn't mean swearing all the time will work.
The study found that people who swear a lot in their daily lives do not get the same benefit from swearing when in pain, since the curse words don't represent a true emotional response. It only works for people to whom swearing is something significant.
Frequent swearers seemed to find no benefit at all. So yes, don't swear so much.