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Ines Vuckovic/DoseInvestigating center school slumber parties’ greatest prank.

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I have a restricted tolerance for staying awake — as a kid I was always the an initial to fall asleep at slumber parties. Everyone knows the very first person out is the first to gain pranked. Ago then, one of the most well-known pranks to be dipping a resting person’s hand in heat water to see if they will do wet the bed, setup them up because that a life time of urine-related nicknames.

I managed to do it through center school without ever before getting to pee pranked (let’s take a short moment of silence because that those who were much less fortunate). Yet I’m curious to understand if dipping someone’s hand in warmth water really causes them come lose control of their bladder.

Let’s investigate.

The experiment

If friend look the pee check up on YouTube — and I very recommend girlfriend do — you’ll watch the results are inconclusive: sometimes the check works, but much more often, it doesn’t.

But in 2009, the TV display “MythBusters” put the whole matter to bed, so come speak. The show carried two test topics to a California sleep lab, hooked them increase to mind monitoring equipment and also lined the bed through moisture-activated voice alarms. When the volunteer got to deep sleep, the various other volunteer snuck right into the room and dipped the sleeper’s hand in a bowl of heat water. Later, they swapped places so the sleeper became the dipper and vice versa.

Neither volunteer wet the bed. Yet that doesn’t average it’s impossible.

The strength of suggestion

According to a 1996 Gallup poll, 25% of every Americans determine as superstitious. This means that one 4 minutes 1 of the country believes they have the right to achieve good fortune by transferring a rabbit’s foot or by staying clear of ladders and black cats.

Psychologists think our expectation are an effective enough to affect the result of a specific occurrence. For example, if you understand parties make you feeling anxious and drinking wine makes you feel much less inhibited, after drink a glass you could find you yourself feeling and also behaving in a an ext outgoing manner. The alcohol didn’t make you much more extroverted — but your mind believes it did.

The exact same theory hold true because that the hand-in-water prank. Psychological Floss posits the there’s one unconditioned solution between hearing the sound of running water and also having to pee. Lock argue that dipping a hand in water might reason the brain to do a comparable connection, thereby relaxing the bladder.

Mental Floss also suggests that “immersion diuresis” can be come blame for this phenomena. Immersion diuresis is as soon as the body is covered in water and also subjected to changes in pressure and temperature, bring about urination. For immersion diuresis to work, however, the whole body would must be submerged, so mental Floss doesn’t give this concept too lot credence.

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The results

Both MythBusters and also Mental Floss complete that not sufficient research has actually been perform to do a definitive judgment on even if it is or no the pee check works. Therefore there’s only one thing to it is in done: Everyone action up and also pee check a friend (or enemy) today.