What is the mechanism that causes people to yawn when they are bored?
Why do we yawn when we're bored?
Why do we yawn? Why do we yawn? Why do we yawn? What is the reason? Why do I yawn when I get excited? Why do people yawn when someone yawns in front? Why do you yawn in your sleep? Why do we feel sleepy when bored even though we had had a good nights sleep? Can you yawn while sleeping? Why do I almost always yawn after an orgasm? What is the purpose of yawning? Is it possible to yawn while asleep? Why do I get bored so often? What do you usually do when you're bored? I yawn a lot at night, what could be the reason? What do you do when you're bored? Why do I get bored when listening to people? Why do people in a group starts yawning simultaneously if someone in group yawns? What does it mean when a dog yawns and isn't tired? Why do I usually get bored of people? Why do we feel hungry when we are bored? What do you do when you are bored? Why do I get bored so quickly? Why does yawning make your singing/speaking voice so good? Why is whistling contagious, like a yawn? Why are yawns sometimes synchronized or sympathetic between two or more people? Why do I get so bored so quickly? Why do some people get bored easily as compared to others? Why do mammals yawn and stretch? Why do I always become bored in relationships? Can someone yawn or sneeze while he is asleep?