New York: Yawning helps keep the brain cool, and the sinuses play a role in that process by acting as bellows, a new report suggests.
A new reports suggests that yawning facilitates keep the brain cool and the sinuses play a role in that process by acting as bellows
According to Gary Hack of the University of Maryland School of Dentistry, and Andrew Gallup of Princeton University, the brain is exquisitely sensitive to temperature changes and therefore must be protected from overheating, they said in a University of Maryland news release. “Brains, like computers, operate best when they are cool.
During yawning, the walls of the maxillary sinuses (located in the cheeks on each side of the nose) flex like bellows and help with brain cooling, according to the researchers.
They noted that the actual function of sinuses is still the subject of debate, and this theory may help clarify their purpose.
The researchers said their theory that yawning helps cool the brain has medical implications. For example, excessive yawning often precedes seizures in people with epilepsy and pain in people with migraine headaches.
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