0
It is because of lack of oxygen, tiredness, or boredom. Another interesting thing is some researchers also believe that groups of the stone age men yawned to intimidate others by showing their teeth, or to show the group a sign it's time to retire or sleep. Also the people who yawn were considered less energetic and hence were protected and sheltered by the others, not allowing them to get in to any danger.
Wiki User
∙ 12y ago
Add your answer:
Earn +20 pts
Can you give a sentence for the word yawn?
Insects do not yawn. People necessarily do not yawn only when they are tired. Most people, after reading this, will yawn.
How many times do do people yawn?
They yawn a whole life time
Why do many yawn when one yawns even out of sight?
they yawn because when you yawn it passes on to other people . so you yawn then someone's right next to you then i think they inhale then they start to yawn ?
How do you say yawn and taught in a sentence?
People in the room began to yawn as the lecturer taught his boring lesson. People are often taught that there are times when it can be rude to yawn.
Why do people yawn when they are cold?
A yawn is normally a response to a change in activity, although if you did not get enough sleep, you could become tired and yawn.
Why do people yawn when they someone else do it?
Yawning is contagious due to mirror neurons in the brain. When we see someone else yawn, these neurons are activated, triggering us to yawn as well. This phenomenon is believed to be an instinctual form of empathetic behavior.
If we yawn, do deaf people think were screamming?
Maybe, depends on how you look when you yawn. I guess.
Why do people yawn when they're sick?
People don't just yawn because they're sick, first of all, they're brain sends out a message to the body, and then the body reacts as a yawn. You also yawn when you're tired, or need to lie down.
Why to people yawn?
People yawn, because its the fastest way to send air up into your brain, so if you were tired and your not thinking well, you would most likely yawn to get your brain working better.
Why do peopel yawn?
People yawn because the body reacks to oragans and air gets traped
Why do you 'yawn' when tired?
People yawn because they are bore.....right now,their is no approved causal of yawnimg
Why do cats yawn when they see you?
They probably just woke up. People yawn when they wake up too.
