Yawning is like a brain reset button. When you're bored or tired, your brain needs a little boost, and a yawn gives it fresh energy by increasing oxygen levels in the body and slowing down heart rate. It also helps people around you feel more connected when they start yawning too.
Examples
- When you're stuck in traffic and feel sleepy, your brain sends out a big yawn to wake itself up.
- Your brother yawns at the dinner table, soon the whole family is yawning together.
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