A few years ago, my good friend Mark Foulks occupied the rear seat of a tandem on a sponsored long-distance cycle ride from Berkshire to Barcelona. His pithily entitled JustGiving website “Berks2Barca” is typical Mark and no doubt contributed to him raising more than £10,000 toward a mobile chemotherapy unit at the Royal Berkshire Hospital.
But it wasn’t easy – accessing Barcelona by road from the north involves crossing the Pyrenees by cycling uphill for long stretches of time. He told me that one strategy that evolved spontaneously during these difficult moments was swearing loudly. But could it really be that shouting profanities in any way helped him get up that hill? If so, why?
As a psychologist interested in understanding swearing, I decided to find out.
My research has previously shown that swearing helps people to better tolerate pain, apparently because swearing triggers the body’s acute stress response. Indeed, this research demonstrates that repeating a swear word during an ice water challenge produces an increase in heart rate, consistent with an aroused autonomic nervous system as seen during moments of acute stress.
This same phenomenon is sometimes talked about as the fight or flight response and is well known to incorporate a range of elevated bodily responses. One example is the release of endorphins, which contributes to a phenomenon known as stress-induced analgesia — potentially explaining why swearing reduces pain.
But one feature of the fight or flight response is the release of adrenaline, which can lead to increased physical performance. This raises the intriguing question as to whether swearing while performing a physical challenge might improve performance by triggering the fight or flight response in a similar fashion to what happened in the swearing and pain research.
“Hell on wheels” experiment
To find out, colleague David Spierer and I asked volunteers to ride a stationary bicycle in what is known as the Wingate Test. After warming up, the rider is asked gradually to build up to top speed, at which moment a switch is flipped adding huge resistance so that the next 30 seconds of exertion resembles hell on wheels. It’s a tough challenge to push very hard under these circumstances and vomiting is not uncommon during or shortly afterward.
In this study, participants performed the Wingate Test twice – on one occasion repeating a swear word during that 30 seconds of high intensity and on another occasion repeating a neutral word. Interestingly, volunteers produced a 4.6% increase in peak power (power exerted during the first five seconds) and a 2.8% boost in average power when swearing.
However, there were no biological signs of the fight or flight response, which we had anticipated would underlie these performance increases. Indeed, several measures of heart rate showed no difference across the swearing and non-swearing conditions. This was a puzzle: We had an effect but no explanation for it.
Thinking that perhaps the enormous exertion required during the Wingate Test may have obscured meaningful heart-rate data, we ran a second study using the more sedate physical challenge of a hand-grip task. But this study showed the same pattern of results. Now we found an 8.2% increase in grip strength when participants swore while undertaking the task. However, once again, there were no physiological signs of the fight or flight response.
Psychological explanation
We feel fairly sure that whatever is causing this effect of swearing on physical performance is not related to fight or flight mechanisms. But if the effect isn’t physical, it’s intriguing to try and work out what psychology may be at play.
It may be that our studies are simply detecting the effects of “letting go” – where any concerns that overexertion may cause injury or embarrassment become more easily put aside. This would be thanks to an “I don’t care” mindset brought about by swearing. If true, then swearing might also be expected to improve the performance of non-strength based physical tasks such as balancing and perhaps even cognitive performance.
What our new studies do show, without explaining it, is that repeating a swear word enables higher degrees of physical exertion compared with repeating a non-swear word. So, at least for now, it seems that science was indeed on the side of my friend Mark during his difficult times in the Pyrenees.
Parents of young children get more time with them if they work from home.Photo credit: Canva
Juicy subject matter
Giphy from The Blacklist.
We could start a rumor.
Grieving couple comforting each other
This response to someone grieving a friend might be the best internet comment ever
When someone is hit with the sudden loss of a friend or loved one, words rarely feel like enough. Yet, more than a decade ago, a wise Redditor named GSnow shared thoughts so profound they still bring comfort to grieving hearts today.
Originally posted around 2011, the now-famous reply was rediscovered when Upvoted, an official Reddit publication, featured it again to remind everyone of its enduring truth. It began as a simple plea for help: “My friend just died. I don't know what to do.”
What followed was a piece of writing that many consider one of the internet’s best comments of all time. It remains shared across social media, grief forums, and personal messages to this day because its honesty and metaphor speak to the raw reality of loss and the slow, irregular path toward healing.
Below is GSnow’s full reply, unchanged, in all its gentle, wave-crashing beauty:
Why this advice still matters
Mental health professionals and grief counselors often describe bereavement in stages or phases, but GSnow’s “wave theory” gives an image more relatable for many. Rather than a linear process, grief surges and retreats—sometimes triggered by a song, a place, or a simple morning cup of coffee.
In recent years, this metaphor has found renewed relevance. Communities on Reddit, TikTok, and grief support groups frequently reshare it to help explain the unpredictable nature of mourning.
Many readers say this analogy helps them feel less alone, giving them permission to ride each wave of grief rather than fight it.
Finding comfort in shared wisdom
Since this comment first surfaced, countless people have posted their own stories underneath it, thanking GSnow and passing the words to others facing fresh heartbreak. It’s proof that sometimes, the internet can feel like a global support group—strangers linked by shared loss and hope.
For those searching for more support today, organizations like The Dougy Center, GriefShare, and local bereavement groups offer compassionate resources. If you or someone you know is struggling with intense grief, please reach out to mental health professionals who can help navigate these deep waters.
When grief comes crashing like the ocean, remember these words—and hang on. There is life between the waves.
This article originally appeared four years ago.