The Reason We Yawn Might Might Be to Cool Down Our Brains What makes yawning so contagious? Why do we yawn? Could it be to cool our hot brains? Facebook Prev Article Next Article Discover Checkout these cool gadgets... Related Posts Wait… Is China Really the Leader in Green Energy? Creating Artificial Life How Apple Uses Rust to Make MacBooks Thorium and why we don’t use it for nuclear power Could Galactic Walls Prove We’re Wrong About The Universe? China spent $168 million to make it rain
