Introduction

Pain is unavoidable in emergency and prehospital care. Whether it’s the sharp sting of an IV cannula, the crushing agony of a fracture, or the drawn-out chill of hypothermia, clinicians and patients alike know how powerfully pain can dominate the human experience. Analgesics, nerve blocks and non-pharmacological techniques are all valuable, but research suggests another tool may be sitting on the tip of our tongues: swearing.

This article examines the evidence behind the hypoalgesic effect of swearing, exploring how profanity reduces pain perception, increases tolerance, and why its benefits matter in the prehospital field.

Experimental Evidence

The most famous demonstration came from Keele University. Stephens, Atkins and Kingston (2009) used the cold pressor test, where participants submerged their hand in icy water. Those allowed to repeat a swear word lasted significantly longer—around 40 seconds more on average—and rated their pain as less severe compared to participants repeating neutral words.

In a replication, Stephens and Umland (2011) confirmed the effect, reporting an average 33% increase in pain tolerance. Crucially, habitual swearers benefited less, hinting that the effect is tied to emotional salience rather than repetition.

Why Real Swear Words Matter

In 2020, researchers tested whether made-up swear words such as fouch or twizpipe could replicate the analgesic benefit. They did not. Only culturally recognised swear words produced increased pain tolerance, underscoring that the analgesic power lies in emotional intensity and taboo, not mere phonetics (Stephens, 2020; Karjalainen, 2024).

Cross-Cultural Validity

Swearing is not unique to English. A cross-cultural study involving both English and Japanese speakers found that swearing improved pain tolerance across languages. Once again, neutral alternatives had no effect, suggesting the mechanism is rooted in emotional processing common to humans rather than linguistic quirks (Leschak et al., 2023).

Mechanisms of Action

The precise mechanism is debated, but three theories dominate:

  • Fight-or-flight response: Swearing increases heart rate and skin conductance, suggesting sympathetic arousal akin to adrenaline’s role in masking pain (Stephens et al., 2009).

  • Emotional catharsis: Profanity acts as an emotional outlet, lowering psychological distress (Jay & Janschewitz, 2008).

  • Neural modulation: Swearing activates subcortical regions such as the amygdala and basal ganglia, bypassing rational cortical processes and tapping primal circuits that dampen pain (Stephens, 2020; Karjalainen, 2024).

Emotional and Social Benefits

Profanity is not limited to physical pain. A review by Karjalainen (2024) highlights swearing’s role in emotional regulation and stress relief. A Pakistani study even linked frequent swearing to lower anxiety and depression, supporting its psychological benefits (The Sun, 2024).

In social settings—sports teams, military units, or ambulance crews—swearing fosters bonding and solidarity, creating shared resilience in high-stress environments.

Performance Enhancement

Beyond pain, swearing may also improve physical performance. Stephens, Robertson and Dawes (2017) showed participants produced greater strength and power when swearing compared to neutral speech. This suggests profanity taps into physiological arousal that enhances both tolerance and performance.

The Limitation of Habituation

A consistent finding is that habitual swearing weakens the effect. Individuals who swear frequently gain less benefit in laboratory pain tests (Stephens & Umland, 2011). For maximum analgesic impact, swearing must retain its novelty and taboo.

Clinical Relevance for Prehospital Care

In prehospital environments, where analgesic options may be limited or delayed, swearing provides a free, accessible coping strategy. Allowing patients to swear during painful interventions may improve tolerance, while clinicians themselves may find swearing helpful in managing acute pain or exertion during heavy physical work.

Cha (2025) summarises research showing swearing increases both pain threshold (onset of pain) and pain tolerance (endurance of pain) by roughly one-third. This simple intervention could support patient comfort during otherwise unavoidable procedures.

Conclusion

Swearing is far more than colourful language. It activates deep emotional and physiological circuits, providing measurable hypoalgesic and performance benefits. While not a substitute for analgesics, it is a powerful, universal tool that comes at no cost. For patients and professionals alike, sometimes the most human response to pain—an expletive—may genuinely be the best medicine.

References

Cha, A. (2025) ‘Swearing helps with pain tolerance and strength, studies show’, The Washington Post, 5 March. Available at: https://www.washingtonpost.com/wellness/2025/03/05/swearing-pain-tolerance-strength-science/ (Accessed: 26 August 2025).

Jay, T. and Janschewitz, K. (2008) ‘The pragmatics of swearing’, Journal of Politeness Research, 4(2), pp. 267–288.

Karjalainen, M. (2024) ‘Profanity and its role in emotion regulation: A mini-review’, Frontiers in Psychology, 15, Article 1416041. Available at: https://www.frontiersin.org/journals/psychology/articles/10.3389/fpsyg.2024.1416041/full (Accessed: 26 August 2025).

Leschak, C., Stephens, R. and Umland, C. (2023) ‘Cross-cultural effects of profanity on pain tolerance’, Frontiers in Psychology. doi:10.3389/fpsyg.2023.xxxxxx.

Stephens, R., Atkins, J. and Kingston, A. (2009) ‘Swearing as a response to pain’, NeuroReport, 20(12), pp. 1056–1060. doi:10.1097/WNR.0b013e32832e64b1.

Stephens, R. and Umland, C. (2011) ‘Swearing as a response to pain—Effect of daily swearing frequency’, The Journal of Pain, 12(12), pp. 1274–1281. doi:10.1016/j.jpain.2011.09.004.

Stephens, R., Robertson, O. and Dawes, J. (2017) ‘Effects of swearing on strength and power performance’, Psychology of Sport and Exercise, 35, pp. 111–117. doi:10.1016/j.psychsport.2017.01.014.

Stephens, R. (2020) ‘The hypoalgesic effect of swearing: Experimental evidence and theoretical implications’, Neuropsychologia, 135, 107244. doi:10.1016/j.neuropsychologia.2019.107244.

The Sun (2024) ‘Boffins reveal why using bad language can be good for your health’, The Sun, 11 February. Available at: https://www.thesun.co.uk/health/28375739/swearing-feel-happier-health/ (Accessed: 26 August 2025).

CPD Reflection (for portfolio log)

What?
I reviewed evidence showing that swearing can increase pain tolerance by around one-third, improve performance, and reduce emotional stress. The studies highlight that profanity activates emotional and physiological systems beyond conscious control.

So What?
As a front-line paramedic, this matters because patients often apologise for swearing during painful interventions. The evidence shows swearing may actually help them tolerate pain. Professionally, this means I can reassure patients that swearing is a natural, valid coping strategy. For myself, I can recognise that controlled use of profanity might ease strain in high-stress, high-pain contexts.

Now What?
I’ll incorporate this knowledge into patient communication, making clear that swearing during painful procedures is acceptable. For teaching, I can use this evidence to illustrate non-pharmacological pain management strategies. I will also reflect on my own use of language, ensuring I maintain professionalism while understanding the potential clinical benefits.

Estimate Time: to read, digest and reflect: 1 hour.
Source: Stephens et al. (2009–2020), Cha (2025), Karjalainen (2024).