April 23, 2012
Updated Apr 23, 2012 at 3:04 PM EDT
UNDATED (Indiana’s NewsCenter) - There's nothing better on a hot day than a cold, sweet treat.
But eating that dessert too quickly can have a painful side effect, a massive brain freeze!
Now researchers may know what causes the mini migraine.
Experts had 13 adults drink ice water from a straw that pressed on their upper palate; they also drank room-temperature water.
The participants raised their hand when brain freeze began and lowered it once it had passed. Their brains were monitored with diagnostic imaging.
Researchers found blood flow to the brain increased rapidly once the brain freeze started.
They say this change in blood flow is the source of brain pain.
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