Mar 12, 2026
3 min read
Scientists have explored the strange winter disaster known as the tundra tongue and discovered when it is most dangerous.
Every child growing up in a cold climate has heard the warning: Don't touch frozen metal with your tongue.Of course. This warning usually comes after someone has taken action.
The moment the tongue hits the frozen metal, it sticks.Panic ensues.A quick draw seems to be the obvious solution.
However, this simple reflex can turn a silly moment into a painful injury.Scientists recently decided to take a closer look at this strange but surprisingly common winter mishap.
Your tongue is warm and moist.Steel in the winter is very cold and produces very good heat.
When the tongue touches the metal surface, the heat quickly leaves the tongue.A thin layer of moisture on the tongue freezes almost immediately.
This ice is like glue, sticking the surface of the mouth to the metal.
In many situations, the contract is inappropriate or deeply harmful.Warm breathing or slightly warm water can melt the ice and safely release the tongue.
The real danger comes when someone panics and tries with all their might to free themselves.
"Try not to panic," Anders Hagen Germund said, "I remember the panic, you're there and your tongue is stuck to the metal. But above all: don't stick your tongue out too soon."
The scientific investigation began with a simple memory.Jarmundur grew up in Hattfeldal, a small town in Norway with very cold winters.Like many children there, he once tried the warning himself.
"I'm from a small town called Hatfjeldal, where it's pretty cold in the winter," he said.
"I don't remember if it was a sign or a lamppost behind the school, but I remember licking it and my tongue got stuck."
Jarmund later learned that this practice was common among his friends.
"This is an experience that my friends really had, and then we wondered if it is really dangerous to put your tongue on a light or railing," he said.
After several years,After studying medicine at the Norwegian University of Science and Technology,Jarmund and several colleagues decided to investigate the question properly.
To his surprise, there was almost no research on the subject in medical journals.
The team started with history, examining Scandinavian newspapers dating back to 1748 to find records of people sticking their tongues to frozen metal.The earliest case they found appeared in 1845.
Their search returned more than 17,000 results.After analyzing them, the researchers identified 113 unique ones.
Models appeared quickly.Five-year-old children appeared the most in the notifications, and boys accounted for about 60% of the cases.
"I'm not surprised anymore, guys," Jarmund said."It's true, I experienced a little numbness."
The researchers also found that researchers have already come up with a name for the place: the language of the tundra.
Most of the cases in the press ended without serious damage.The trapped tongue finally let loose a little shamelessly.
However, about 18% of cases involved a visit to a doctor or hospital.In these cases, the problem was something like ovulation, when a piece of tissue breaks off.
With a frozen tongue, this usually happens when someone pulls hard to get free.
Avulsion can cause bleeding, pain, and damage that may require medical attention.The risk depends partly on the temperature and on the strength of the stretch.
To understand the physics behind tundra language, researchers needed to conduct an experiment.But they didn't want to test the idea on themselves.
"We were skeptical that any ethics committee would approve human volunteers for this," Germond said.
After discussing which animal tissue was most similar to a human tongue, the team obtained eighty-four pig tongues from a licensed slaughterhouse near Trondheim.
This experiment requires careful setup. The team used force sensors, temperature controls, and infrared cameras to monitor what happened when the tongue met the frozen metal, and even provided saliva to maintain reality.
"And they were pretty cheap," Jarmond said."But I'm not sure there's a huge market for pig tongue."
When a pig's tongue touches solidified metal, they stick firmly in place.This result was not surprising.
The real insight came when the researchers measured how much force was needed to pull out the tongue.
In 54% of the experiments, pulling out the tongue caused the tissue to tear.The stronger the pull, the more likely the tongue will tear.
Temperatures between 23°F and 5°F (-5 to -15°C) posed the greatest risk for this type of injury.
The team also noticed something unexpected.When the metal was very cold, the chance of tearing was slightly reduced.
The researchers suspect that the tongue freezes more firmly under these conditions, which may help it resist tearing when removed.
Science confirms what winter veterans have known for a long time.Most cases of frozen tongue are not serious if handled gently — the key is patience.
Breathing hot air on the metal or pouring warm water on the point of contact can melt the ice holding the tongue in place.In seconds, the tongue will come out unharmed.
The moment can be awkward.It may even seem funny to anyone watching.But the safest response is simple: keep calm and let the heat do the work.
The full study was published in the journal International Journal of Pediatric Otorhinolaryngology.
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