You yawn when you are tired. Sometimes a yawn might sneak in when you are bored, or because you have just seen someone else do it. But maybe the question of “why” never really occurred to you. However, if your inquiring mind ever wanted to know why this involuntary reflex seems to happen at the most awkward times, or why it happens at all, new research has helped to crack the mystery by giving us new information about the brain. Grain Brain: The Surpr… David Perlmutter Best Price: $0.25 Buy New $5.78 (as of 10:47 EST – Details) Yawning has … Continue reading Why Do You Yawn?