Skip to main content

Why Do We Yawn?

There are a number of theories designed to explain why do we yawn. The most common theory is that yawning is a result of boredom or tiredness. So why do you yawn when you're tired? Scientists suggest that when you’re sleepy, tired, or bored, your breathing slows down and as a result, the required amount of oxygen is not produced in the body that is necessary for its functioning. In addition, slow breathing increases the levels of carbon dioxide gas in the body. As a means of coping, the brain triggers the yawning action.
A yawn is characterized by a wide opening of the mouth and the dropping of one’s jaw. This allows the maximum amount of air to be taken in by the lungs. This is followed by the slow exhalation of air alongside the flexing of abdominal muscles, the expanding of eardrums, and the pushing down of the diaphragm. When the brain needs a pick-me-upper, it will induce actions that trigger the long inhalation, filling the lungs with their full air capacity, dispelling the lungs of stale air, increasing your heart rate, and reviving of your senses

Comments

Post a Comment

Popular posts from this blog

Key Schools in china

The designation of ``Key School'' exists for selected schools at every educational level in China: elementary, secondary and higher. In addition, there are various levels of the ``key'' designation itself: There are national key institutions, provincial or municipal key institutions, and county or district key institutions. Key schools all enjoy priority funding as well as the privilege of recruiting the best students. At the elementary and secondary levels, this concept is similar to that of a ``magnet'' or ``college preparatory'' school in the United States. Entry into such schools is based on examination and academic promise and achievement. For such schools, success is usually measured in terms of the percentage of its graduates entering colleges and universities, especially the key colleges and universities. The philosophy has been that giving a limited number of schools, colleges and universities priority in allocating limited resources, then the t...
Post a Comment
Read more

Best Links for Education Powerful Backlinks

http://blogger.psu.edu/ http://blogs.berkeley.edu/ http://statemuseum.arizona.edu/ http://blog.uwgb.edu/ http://gsc.mit.edu/blog/ http://www.career.umkc.edu/ http://blogpublic.lib.msu.edu/ http://www.dmu.edu/blog/ http://www.amcollege.edu/ http://aar.slu.edu/ http://abroadblogs.newpaltz.edu/ http://aceop.wvstateu.edu/ http://blog.admissions.cornell.edu/ http://admissions.fsu.edu/ http://admissions.ncsu.edu/ http://aearu.ntu.edu.tw/ http://ag.arizona.edu/ http://aipi.clas.asu.edu/ http://aiti.mit.edu/blog/ http://alg.umbc.edu/usaq/ http://alumni.brandeis.edu/ http://alumni.gsb.stanford.edu/ http://tomprofblog.mit.edu/ http://answer.rutgers.edu/blog/ http://antarctica.uab.edu/blog/ http://aphia.rso.siuc.edu/ http://appreciativeinquiry.case.edu/ http://apps.exploratorium.edu/ http://apps.pathology.jhu.edu/ http://archery.berkeley.edu/ http://architecture.tulane.edu/ http://asiahealthpolicy.stanford.edu/ http://asic.union.edu/ http://asunews.asu.edu/ http://www.rioredstorm.com/ http://atif...
Post a Comment
Read more

CNN senior data reporter Harry Enten said Tuesday that Biden was doing "worse than Jimmy Carter" on inflation and that American people were holding him responsible.

CNN senior data reporter Harry Enten said Tuesday that Biden was doing "worse than Jimmy Carter" on inflation and that American people were holding him responsible. CNN senior data reporter Harry Enten said Tuesday that Biden was doing "worse than Jimmy Carter" on inflation and that American people were holding him responsible. Posted: 16 Jun 2022 09:40 PM PDT  Enten starts by pointing out that in Biden's America, consumer sentiment is the worst it has ever been since the University of Michigan began measurin...
3 comments
Read more