If you use a certain four-letter word more often than your mom would like, or really any word that usually gets written as a string of symbols online, you may have more going for you than a colorful vocabulary.
Swearing gets treated as something to fix. Something crude, impulsive, a sign that you ran out of better words. People who do it a lot are assumed to lack self-control, vocabulary, or both.
Your mom would like you to stop. Your manager would prefer you didn’t.
But psychologists have found two surprisingly useful things associated with the habit: people who swear more tend to be less edited about what they think, and letting one rip when something hurts can help you tolerate the pain longer.
Your brain knows the difference between “shoot” and what you wanted to say
Swear words aren’t just words with bad reputations. They sit in a different category in your brain than the rest of your vocabulary.
“Table” and the F-word don’t get processed the same way. The swear word grabs more attention, triggers a stronger reaction, and carries the knowledge that you’re saying something you’re supposed to hold back.
That’s what makes them interesting to researchers. Every time you use one, it costs you something socially. You risk a look, a judgment, a do you have to talk like that? The fact that you say it anyway is part of what gives the word its charge.
A polite substitute doesn’t carry the same cost, so it doesn’t carry the same charge.
The same person who won’t clean up their language also won’t clean up their opinions
Gilad Feldman, a psychologist at the University of Hong Kong, wanted to know whether the willingness to swear had anything to do with how much a person filters what they say in general. So he ran three studies.
In the first, he asked 276 people to list their favorite swear words, then gave them a test designed to catch people putting on a good face — answering the way they thought they should instead of the way they actually felt. The people who listed more swear words were the ones least likely to be cleaning up their answers.
The second study looked at 75,000 Facebook profiles across the United States.
Feldman’s team ran the language through software that detects how forthcoming a person’s writing is. Users who swore more in their posts also used more first-person language, fewer hedging phrases, and fewer of the little softeners people add when they’re being careful.
That doesn’t mean every person who drops an F-bomb on Facebook is telling the truth. But the people who weren’t editing their language also weren’t editing themselves. The two habits ran together.
Swearing is a small act of social rule-breaking. Every time you do it, you’re choosing not to filter. Someone who makes that choice with their words may also be less interested in filtering their opinions, their image, or the version of themselves they show the world.
It’s not that the swearing causes the honesty. It’s that both come from the same place: less concern with sounding polished.
More Bolde Stories
The word you yell after stubbing your toe is doing more than you think
Richard Stephens, a psychologist at Keele University in England, got curious about this after hearing his wife’s vocabulary during childbirth.
She is, by his account, not typically a swearer. But in that moment, the words came out, and he wondered whether the instinct might serve a real purpose rather than just being a loss of composure.
So he tested it.
Sixty-seven people submerged a hand in painfully cold water while repeating either a swear word or a neutral control word. The people who swore kept their hands in about 40 seconds longer and reported less perceived pain. Same water, same temperature, different word, meaningfully different experience.
Forty seconds is a lot. It’s not a subtle statistical finding.
It’s the difference between yanking your hand out at a minute and twenty seconds versus keeping it in past two minutes. Something about the swear word changed how much the pain bothered them, enough to show up on a stopwatch.
The finding held up. Other researchers ran similar experiments and got similar results. Stephens’s most recent work, published in American Psychologist in 2025, found that swearing also improved grip strength and physical endurance.
His explanation: the swear word loosens something. It puts you in a slightly less restrained state, which lets you push a little further than you would with “ouch” or “darn.”
He also tested whether made-up swear words could do the same thing. They couldn’t. The benefit came specifically from words that carry real social taboo. Invented ones that just sounded harsh didn’t produce the same effect. The charge has to be real for the response to work.
Both findings depend on the same ingredient: the part you’re supposed to hold back
Nobody has proven that the same brain process explains both findings. But they share an ingredient: the cost of saying something you’re not supposed to say. That cost is what your mom told you to suppress, and it’s what gives both effects their charge.
This isn’t a free pass to curse out your coworker, though. Someone can swear constantly and lie through their teeth.
Feldman found a pattern, not a rule. And a 2018 rebuttal by psychologist Reinout de Vries at Vrije Universiteit Amsterdam and colleagues argued that one of the measures used in the first study may not have been capturing dishonesty the way the authors assumed. The finding is interesting, but it’s not settled science.
Context matters too.
A friend who swears freely while telling you a story is charming. A stranger who swears at you in traffic is threatening. Context decides which version people hear. Profanity can make someone seem aggressive or difficult to be around, and the room you’re in determines whether the words land as warmth or hostility.
And the pain-relief effect has its own limit.
Stephens found that people who swear frequently in everyday life got a smaller boost from swearing during the experiment. The words may lose some of their punch with overuse. If the F-word is your default, it might be doing less for you in the moments when you need it most.
The potty mouth gets a little more credit than your mom probably gave it
Your mom was right that those words carry something extra. She just had the direction wrong.
The extra thing isn’t a character flaw. It’s a charge, and the charge is there because the word costs something to say. That cost is what makes it land when a polite substitute wouldn’t, whether you’re telling someone what you actually think or holding your hand under cold water for forty seconds longer than anyone expected you to.
The words she told you not to say aren’t empty. They’re overqualified for polite company, and that’s exactly the point.
