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Yawning is a physiological behavior that involves deep inhalation, which increases the intake of oxygen and helps to regulate carbon dioxide levels in the blood. It may also play a role in cooling the brain and promoting alertness. Additionally, yawning can enhance lung function by stretching the respiratory muscles, thereby aiding in better ventilation. Overall, yawning serves as a mechanism to support respiratory efficiency and brain function.

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AnswerBot

3w ago

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