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- $Unique_ID{BRK01285}
- $Pretitle{}
- $Title{Why Do We Yawn and Why Does Everyone Seem to Do it at the Same Time?}
- $Subject{yawn cause ill defined symptoms symptom yawning inspiration lungs
- mouth alveoli air sacs breath respiratory pulmonary system behavior behaviors
- yawned yawns lung breathe breathing bronchi bronchioles}
- $Volume{N-23,H-5}
- $Log{
- Anatomy of the Bronchial Tree*0005902.scf
- Anatomy of the Alveoli*0005903.scf}
-
- Copyright (c) 1991-92,1993 Tribune Media Services, Inc.
-
-
- Why Do We Yawn and Why Does Everyone Seem to Do it at the Same Time?
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-
- ------------------------------------------------------------------------------
-
- QUESTION: Please do not laugh at my question, but since I have been unable to
- find an answer to it, I thought you might be able to help me. Quite simply I
- would like to know why we yawn, and why everyone seems to do it at the same
- time? Could you look up the answer for me, and put it in your column?
-
- ------------------------------------------------------------------------------
-
- ANSWER: Actually, that is a very good question, since it may interest many
- people and so deserves an answer. I'll be honest. There has not been a
- tremendous amount of medical literature written about the process of yawning,
- but it certainly is something we all do at one time or another. Now, a yawn
- is not simply opening the mouth wide, but is usually accompanied by a deep
- inspiration, filling the lungs fully with air. That circumstance has lead to
- a theory that yawning has something to do with the physical state of our lungs
- at the time the yawn comes along. As we all know, the lung is filled with
- millions of minute air sacs called "alveoli" where oxygen is taken out of the
- air and transferred into the blood stream, for transportation to all the cells
- of the body. After we have been sitting for a prolonged period of time,
- perhaps in a slumped position, some of the air sacs collapse. When enough of
- them have been affected, the lung can not function as it should and so we yawn
- to re-expand all of the lung tissue once again. If we search for a logical
- reason for everyone yawning at the same time, it might be because they are all
- doing the same thing, sitting in a room with stale air, watching a show or
- television, not exerting themselves too much, a time when shallow breathing
- sets in. Therefore, it could be speculated that they would all need to yawn
- at the same time. Of course, it has also been written that yawning can be
- induced by the power of suggestion, and we sort of "catch" it from the next
- person. Or it could just mean the show was boring and the yawn was a display
- of disinterest. Now take a deep breath and take your pick.
-
- ----------------
-
- The material contained here is "FOR INFORMATION ONLY" and should not replace
- the counsel and advice of your personal physician. Promptly consulting your
- doctor is the best path to a quick and successful resolution of any medical
- problem.
-
-