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to increase oxygen in the body actually, scientist found out that this statement is false. yawning doesn't increase oxygen in the body. it include an experiments and trials on putting a person inside an oxygen rich environment or something like that. i forgot the show though...
up to now, they are still finding out why men and some mammals, birds and reptiles yawn.
What else can I help you with?
Can you put the word yawn in a sentence?
When I am sleepy or tired I yawn.
Do ant yawn?
Yes when they are sleepy and tired
What happen to the body when blood contains to much carbon dioxide?
You will pass out. You will yawn. You may feel very sleepy.
Why do you yawn when you are not sleepy?
because your tired
Why we yawn when we are sleepy?
because your mind is not concentrated so you yawn to show you to go to bed
How do you say I am a little sleepy my love?
yawn and say I'm getting sleepy are you tired
Why do you yawn a lot even after a good nights sleep?
When you yawn it doesn't mean your sleepy. Even scientists don't know why you yawn.
Why do you yawn when you are sleepy?
You yawn when you are sleepy because that is when you take in the least oxygen. Your body takes in more oxygen when you are yawning, which explains the reason to why you take in air when you yawn.
Why do you yawn when you see someone yawning?
because your sleepy too.
When you yawn does it mean your sleepy?
yes because its saying to go to bed!
Why do you yawn when you are sleepy or drowsy?
while sleepy CO2 accumulation increase and to get rid of it we yawn.
Why can't i yawn at night when i nfeel like?
You only tend to yawn when you're very sleepy or when your listening/watching something very boring that you're not interested in. You can't really choose when to yawn.
