CNNYou don’t yawn because you’re tiredCNN(TIME.com) — Chances are you read this sentence about yawning and you yawned. Right? Well, a new study suggests that you may not really be yawning because it’s contagious, or you’re bored or tired. You’re actually yawning because your brain is too hot.Is Your Brain Overheating? Try YawningHealthDayStudy: People yawn to cool overheated brainsUPI.comYawning May Cool Your Brain, new study saysCanada NewsDaily Mail -Science Recorder -University Heraldall 66 news articles …Read Full Story
You don't yawn because you're tired - CNN
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