Why Do We Yawn?
Introduction
New research shows that yawning helps move liquid inside the brain.
Main Body
Scientists looked at the brains of 22 people. They saw that yawning moves a special liquid. This liquid cleans the brain and removes waste. Deep breathing does not work as well as yawning. Yawning moves the liquid better. We cannot stop a yawn easily because the brain controls it. Yawning also helps the brain stay cool. This is important for the brain to work well. This discovery might help doctors treat bad headaches.
Conclusion
Yawning is a tool to clean and cool the brain.
Learning
💡 The 'Help' Pattern
In this text, we see how to describe why something is useful. Notice how the word help works:
- Yawning helps move liquid.
- Yawning helps the brain stay cool.
- This discovery might help doctors.
The Simple Rule:
Help + Action This tells us the result of an activity.
⚖️ Comparing Things
Look at this sentence:
"Deep breathing does not work as well as yawning."
When you want to say one thing is better than another, use: Not as [quality] as
- Example: Walking is not as fast as running.
- Example: A pen is not as heavy as a book.
🗝️ Key Vocabulary for A2
| Word | Meaning | Simple Example |
|---|---|---|
| Waste | Rubbish/Trash | Put the waste in the bin. |
| Tool | Something that does a job | A hammer is a tool. |
| Easily | Without difficulty | I can open the door easily. |