Yawning is a universal behavior observed in many species, but why do we tend to yawn when someone else does? While the idea that yawning increases brain oxygenation remains unproven, some evidence suggests it may be linked to circadian rhythms and attention regulation.
Yawning is a universal behavior observed in many species, but why do we tend to yawn when someone else does? While the idea that yawning increases brain oxygenation remains unproven, some evidence suggests it may be linked to circadian rhythms and attention regulation.
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