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 Actually Happens to All Your Deleted Files? What Is Sea Level, Anyway? Are Space and Time An Illusion? This Is How Your Brain Works Your Private Messages Might Travel Under This Beach If You Drink Milk You Are a Mutant Says Science
