Swearing is a drug-free tool that can boost performance, scientists say

It may not be in keeping with the festive spirit, but if you find yourself dropping an F-bomb while wrestling a Christmas tree up a flight of stairs, scientists say you could be on to something.

- Hannah Devlin Science correspondent

Swearing boosts physical performance by lowering inhibitions and pushing the brain into a “flow state”, a study has concluded.

“In many situations, people hold themselves back - consciously or unconsciously - from using their full strength,” said Dr Richard Stephens, a psychologist at Keele University who led the research. “Swearing is an easily available way to help yourself feel focused, confident and less distracted, and go for it a little more.”