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 Pretty People Are Hard to Remember Is There a Fifth Fundamental Force? How Texting Affects Your Brain How People Disappear Why Is Sweden Buying Trash From Other Countries? A New Way to See the Brain
