Why do we start yawning when we feel sleepy or drowsy
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yawning is accompanied by increase in heart rate
yawning comes when we are tired or even feeling sleep
fun fact is yawning is not always a benign act.it can also be a sign of diseases
like brainstem hypoxia (don't worry it is rare
yawning comes when we are tired or even feeling sleep
fun fact is yawning is not always a benign act.it can also be a sign of diseases
like brainstem hypoxia (don't worry it is rare
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