Topic: Causes People to Yawn
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Answers to Common Questions
What Causes Yawning?
Actually, there is no proven cause of yawning, although we think of it as being caused by sleepiness or boredom. The most common theory is that it provides extra oxygen to the brain and decreases carbon dioxide. Read More »
Source: http://answers.ask.com/Health/Diseases/what_causes_yawning
What Causes a Person to Yawn?
Yawning is a person's natural defense against a build up of Carbon Monoxide in the body. When oxygen level drop int he blood, the brain will induce a yawn, causing more oxygen to enter the lungs and bloodstream. No one is quite sure why yaw... Read More »
Source: http://answers.ask.com/Health/Diseases/what_causes_a_person_to_ya...
What Causes People to Yawn?
Many say the reason we yawn is because we are tired. That is partly true but the main reason is we are in need of more oxygen. When we are tired we breathe differently so it contributes to the yawning. Read More »
Source: http://answers.ask.com/Health/Diseases/what_causes_people_to_yawn
More Common Questions
Answers to Other Common Questions
There is no scientific answer on why we yawn. Some think it may be caused by being bored or sleepy but is considered an involuntary response.. In fact, even babies yawn before they are born. If it also catchy! If you see someone yawn, don't...
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Source: http://answers.ask.com/Health/Diseases/what_causes_excessive_yawn...
Yawning is an action common to all human cultures and among many animal species, from cats and dogs to tigers and chimps. It's a well-known phenomenon that yawns are contagious--meaning if you see someone else yawn or even just read about y...
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Source: http://www.ehow.com/about_5079977_cause-yawning.html
Introduction Whether you are tired, bored, or just around someone who is yawning, you will eventually yawn at some point. However, the reasoning behind the yawning has been of scientific debate for many years. This has led scientists to nar...
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Source: http://www.ehow.com/how_4925123_what-causes-yawning.html
Reasons: 1) Where, there is a discussion/lecture/conversation going on which you don't like and you don't have any interest in that. 2) An intimation to you where sleep is on head. 3) A sign of tiredness.
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Source: http://wiki.answers.com/Q/What_causes_us_to_yawn
they say its due to a lack of oxygen to the brain....it happens to me as a result of me being around air conditionin Well I always yawn when I'm tired, it gives me more energy but it makes me sleepy or when you se someone else yawning const...
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Source: http://wiki.answers.com/Q/What_causes_constant_yawning
did u get enough sleep on the day before? u need eight hours, if u didnt, thats probably the cause
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Source: http://wiki.answers.com/Q/What_is_the_cause_of_excessive_yawning
Yawning can signal lack of oxygen in the bloodstream. Tiredness, whereby one doesn't breathe deeply or properly, can cause yawning. But, it can also signal deeper physiological causes such as lack of red blood cells, a weak heart or poor lu...
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Source: http://www.ehow.com/about_5591772_causes-shortness-breath-constan...
