Why do we mirror other people's yawns and smiles?
The Copycat Brain
Why do we mirror other people's yawns and smiles?
You're sitting in class, and someone across the room yawns. Two seconds later, your own mouth opens wide — you're yawning too, even though you weren't tired a moment ago. Or your friend grins, and suddenly you're grinning back without deciding to. What's happening? Why does your face copy other people's faces like a mirror?
Deep in your brain, there's a network of cells called mirror neurons. They fire — send out electrical signals — when you DO something, like reach for a cup. But here's the wild part: they also fire when you WATCH someone else reach for a cup. Your brain rehearses the action just from seeing it, like a silent echo.
