Scientists are not so sure why do we yawn but they have linked yawning to sleepiness or lack of oxygen (which could cause sleepiness). When do we yawn?
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People also ask
Why do we yawn Why do we yawn?
What does it mean when someone yawns while talking to you?
Why do people yawn with their mouth open?
Does yawning mean lack of oxygen?
Duration: 37:56
Posted: May 20, 2020
Posted: May 20, 2020
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Apr 4, 2024 · The first theory, that yawning is simply a sign of tiredness, doesn't hold up because people can yawn when they're bored and well-rested. The ...
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Jul 31, 2007 · Many people assume that we yawn because our bodies are trying to get rid of extra carbon dioxide and to take in more oxygen. This may make some ...
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Mar 10, 2021 · Especially when we are bored in class. We indeed yawn a lot when we are… Read More · Why do we get nosebleeds? By lmsottawa | October 11, 2020.
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Apr 8, 2022 · In this lesson, you will learn about what happens in our bodies when we yawn and investigate the question of whether yawning is contagious.
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What is it that makes us suddenly draw in a deep breath through a wide-open mouth? The beautiful thing about yawning is that researchers really don't know.
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Duration: 5:16
Posted: Feb 1, 2019
Posted: Feb 1, 2019
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