Everyone has felt it.. BRAIN FREEZE– excruciating pain behind the temples and forehead during ice cream or a really cold drink.
Research suggests that a change in blood flow may be what brings on the icy throb- and perhaps migranes too.
Scientists found that just before the brain freeze (pain) starts, right when rushing cold liquids that hit the roof of the mouth, blood flow surges in an artery that feeds the front of the brain.
The rush creates pressure in the skull- voila! Brain Freeze.
When the artery shrinks back, possibly as the palette warms up again, we start to feel relief.
Could be a defense mechanism .
“The brain is one of the relatively important organs in the body, and it needs to be working all the time,” said lead researcher Jorge Serrador of Harvard Medical School. “It’s fairly sensitive to temperature, so [expanding arteries] might be moving warm blood inside tissue to make sure the brain stays warm.”