A yawn is a reflex consisting of the simultaneous inhalation of air and the stretching of the .... Gordon Gallup, who hypothesizes that yawning may be a means of keeping the brain cool, also hypothesizes that "contagious" yawning may be a ...
Yawn definition, to open the mouth somewhat involuntarily with a prolonged, deep inhalation and sighing or heavy exhalation, as from drowsiness or boredom .
Yawning definition, being or standing wide open; gaping: the yawning mouth of a cave. See more.
Define yawn: to open your mouth wide while taking in breath usually because you are tired or bored — yawn in a sentence.
Jun 28, 2013 ... Pinpointing exactly why we yawn is a tough task, but the latest research ... which means it tends to heat up more than other organ systems.
To open the mouth wide with a deep inhalation, usually involuntarily from drowsiness, fatigue, or boredom. 2. To open wide; gape: The chasm yawned at our feet ...
The reflex that makes you open your mouth wide, inhale, and then exhale is called a yawn. Even seeing photos of other people's yawns (or reading the word ...
Married man: "Since we got married she has completed changed..she would not even let me talk anymore..besides from the times when i yawn, she keeps my ...