What Is the Purpose of Yawning?

Yawning is like a little brain reset. When you're tired, your brain needs more oxygen, and yawning helps it get that fresh air. It also makes you feel more awake. Think of it as your brain saying, 'Hey, I need to wake up!'

Take the quiz →

Examples

  1. When your brain feels sleepy, it makes you yawn to wake up like when you're sitting in class after lunch.

Ask a question

See also

Discussion

Recent activity