Why Do We Yawn? | The KnowHub #Shorts

4 months ago
3

Ever wondered why we yawn—even when we're not tired? 🤔 Yawning isn’t just about sleepiness—it’s your brain’s way of cooling down and staying alert! 🧠💨
Discover the science behind yawning in just 30 seconds.
#TheKnowHub #Shorts #YawningFacts #DidYouKnow #BrainFacts

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