Next time you're primed to hold back a torrent of four-letter frustration, just let 'er rip instead.

"Swearing is an easily available way to help yourself feel focused, confident and less distracted, and 'go for it' a little more," said researcher Richard Stephens of Keele University in the U.K.

In a study published in the journal American Psychologist, he and his team reported that swearing helps people overcome inhibitions and push themselves harder on strength and endurance tests.

They had already revealed that swearing helps folks perform better on many physical challenges -- from how long they can support their body weight during a push-up exercise to how long they can plunge their hand into ice water.

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