JUST don't do it.
That's the message paramedics have for children who are considering or who have played the so-called choking game.
The message came after three Darling Heights State School nine-year-old children became unconscious on Wednesday after intentionally cutting off the oxygen supply to each other's brains with the goal of inducing temporary euphoria.
The catch to the game is that sometimes the person being choked will pass out or be left with irreversible brain damage - and sometimes will even die.
Darling Downs Local Ambulance Service Network Senior Operations Supervisor Peter Crooks said paramedics were called to a scene where three Toowoomba children were unconscious.
He said paramedics were not required to transport the children.
He put out a warning to the public and to the parents of children regarding the game.
"It's quite a silly thing to be doing," he said.
"Cutting oxygen supply to your brain can be fatal.
"It has had that consequence in the past, it's rare but is has happened."
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Mr Crooks said the activity had the potential to cause permanent brain damage.
"Cutting oxygen supply to brain has that possibility because the brain thrives on oxygen and sugar, that's how it survives."
His advice to young people: just don't do it.
"It's a stupid game, don't play it.
"The consequences are far more grave and lasting than any possible excitement that could be gained from it."
A spokesman for the Department of Education and Training said the safety and wellbeing of students was a top priority.
"Incidents such as these are taken extremely seriously.
"The Queensland Ambulance Service was contacted immediately after discovery of the incident by a playground teacher, as were the parents of the students involved.
"The school will continue to reiterate messages regarding safe play to all students.
"All students impacted will have access to support and counselling services."
The spokesman said as schools were best placed to manage incidents locally, the department did not have a central record of statistics on the number of incidents in Queensland.