Yawns Freeze Your Brain

Ever wondered why we yawn and have eyebrows, what happens at absolute zero and why some tunes get stuck in our heads?If you've spent your days searching for the answers to these and life's other big questions then look no further.Yawns Freeze Your Brain from the bestselling author of Does Anything Eat Wasps and Farts Aren't Invisible is the gift of enlightenment that you never knew you needed!Shin...