Tag Archives | yawning

We Yawn Because We’re Stressed, Not Just Tired

We all know we yawn when we are sleepy or bored. But we also yawn because we’re stressed, not just when we are tired. Robert Provine, a neuroscientist and author of Curious Behavior: Yawning, Laughing, Hiccupping, and Beyond, believes yawning is a displacement activity. Displacement activities are unexpected and often unintended behaviors which happen when…

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