A new study suggests that swearing during physical tasks can enhance strength and endurance by reducing mental inhibitions. Researchers from Keele University found that participants who used swear words lasted longer in exercises compared to those using neutral words. The findings, published in American Psychologist, highlight swearing's role in boosting confidence and focus.
Swearing has long been associated with emotional release, but recent research indicates it may also provide a tangible physical benefit. In experiments involving 192 participants, individuals performed chair push-up tasks while repeating either a swear word or a neutral word every two seconds. Those who swore held their body weight significantly longer, with the advantage tied to increased psychological flow, distraction, and self-confidence—hallmarks of a disinhibited state.
"In many situations, people hold themselves back—consciously or unconsciously—from using their full strength," explained lead author Richard Stephens, PhD, from Keele University in the U.K. "Swearing is an easily available way to help yourself feel focused, confident and less distracted, and 'go for it' a little more."
This builds on prior studies showing swearing's endurance effects, such as prolonging time with a hand in ice water or sustaining push-ups. Stephens noted that the mechanism involves shedding social constraints: "By swearing, we throw off social constraint and allow ourselves to push harder in different situations."
The research, published by the American Psychological Association in 2025, describes swearing as a "calorie neutral, drug free, low cost, readily available tool" for performance boosts. Co-author Nicholas Washmuth, DPT, from the University of Alabama in Huntsville, added that future work will explore applications in non-physical scenarios like public speaking and romantic interactions, where hesitation often hinders effort.
These insights could explain swearing's ubiquity, offering a simple, accessible aid for overcoming mental barriers in demanding activities.
