Aug 20, 2019 · We usually think of yawning as a sign of sleepiness or boredom, but experts say that isn't the whole story. True, we tend to yawn toward bedtime ...
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Missing: YAWN by_the_way_doctor_why_do_i_yawn_when_i_exercise
Duration: 7:45
Posted: Jul 6, 2023
Posted: Jul 6, 2023
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