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What is Understanding Yawning about?

Yawning is often associated with boredom and sleepiness, but its triggers may include drops in blood oxygen levels or increases in carbon dioxide. While yawning may have served a biological function in early life, such as clearing airways in fetuses, its role in adults appears to be more of a developmental remnant with no clear function. Overall, yawning seems to precede changes in activity rather than directly correlate with feelings of tiredness or boredom.

Author

2834787508

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EN