Science, asked by BtPrince8, 1 day ago

Why do you think we yawn when we sleepy or drowsy ?

Answers

Answered by robertshuell3

some evidence suggests that yawning is a means of communicating changing environmental or internal body conditions to others still low on oxygen levels in the particular nucleus of the revivalists of the brain that include yawning other happenings that the that we on cuz we're tired or bored

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