Why is yawning contagious? - Claudia Aguirre?

Yawning is contagious because people copy each other when they see someone yawn, just like you might copy a friend when they laugh or sing.

When one person yawns, their brain sends out a signal to the rest of their body. This signal makes them feel sleepy or relaxed. But it also sends a message that says, "Hey, I’m tired!" And other people nearby can see this signal, they see the big open mouth and the deep breath.

Now imagine you're playing with your friend, and suddenly they yawn really loudly. You might feel like yawning too because your brain is trying to match what it sees. It's kind of like when you're on a swing and someone else swings higher than you, you want to swing just as high!

Why does this happen? Scientists think that copying others helps people stay in sync, especially when they’re with family or friends. So next time someone yawns near you, don’t be surprised if your mouth opens up too!