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As per the theory of yawning, when the person gets tired or bored, the amount of carbon di oxide in the body of person increases and oxygen level decreases. This leads to low blood flow to the heart and brain, so to increase the oxygen level the person yawns. In the process of yawning more amount of carbon di oxide goes out of the body and the body can take more amount of oxygen
What else can I help you with?
Can you put the word yawn in a sentence?
When I am sleepy or tired I yawn.
Why do you yawn when you are not sleepy?
because your tired
Do you yawn because you are relaxed?
You do not yawn when you are relaxed because scientists have proven that when you yawn, you either need sleep or it is because you are tired.
When a dog yawns what does that mean?
Same thing as when you yawn..... When you get tired you get a shortness of breath causing you to yawn...you yawn to catch your breath when your tired...
Why do you 'yawn' when tired?
People yawn because they are bore.....right now,their is no approved causal of yawnimg
Can you put the word yawn in a sentence?
When I am sleepy or tired I yawn.
Why do you sigh or yawn so much?
this happen you a person is tired orhas a luck of oxygen in there body
Do ant yawn?
Yes when they are sleepy and tired
Why do you yawn when you are not sleepy?
because your tired
Why do you yawn a lot when you have a stomach ache?
because stomach aches usually make you tired by the pain so when your tired you usually yawn! does that helP?
Do you yawn because you are relaxed?
You do not yawn when you are relaxed because scientists have proven that when you yawn, you either need sleep or it is because you are tired.
Why do you stretch after you yawn?
because we feel tired
When a dog yawns what does that mean?
Same thing as when you yawn..... When you get tired you get a shortness of breath causing you to yawn...you yawn to catch your breath when your tired...
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 you 'yawn' when tired?
People yawn because they are bore.....right now,their is no approved causal of yawnimg
Do you yawn when you are tired?
yes when you are tired and your body is trying to stay awake it yawns
Why do budgies yawn?
Same as humans because there tired
