Why Do We Yawn? | Human Body Explained
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Why Do We Yawn? | Human Body Explained
Why do we yawn? It’s not just about being sleepy. Scientists believe yawning helps cool the brain, boost oxygen flow, and reset the body when it needs energy. Even more fascinating — yawning is contagious, triggered by mirror neurons in your brain when you see or hear someone else do it. This short science video explains the surprising ...
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