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 What Can We Learn By Drilling Into The Earth’s Mantle? Is Anything Truly Random? Can you solve the buried treasure riddle? Is it Possible to Curve a Bullet? | MythBusters How to practice effectively…for just about anything Bonnie Bassler Talks About Bacteria – Amazing Science Talk
