Why Do Humans Yawn?
Editorial summary
A brief look at yawning and the ideas scientists have raised about it, including brain temperature, alertness and links to empathy and social bonding.
This summary is written from the video’s title and the channel’s own description, not from a transcript. It may differ from what the video says.
Key takeaways
- Several hypotheses exist for why we yawn.
- Yawning often appears at transitions between states.
A question to take with you
When do you notice yourself yawning, and does someone else's yawn set you off?