Yawning is something that everybody does. It happens only when you’re tired right? When you stayed up to late writing that paper? When you have finished the last episode of season three on Netflix? Many people don’t actually understand why we yawn and how it happens.
According to an article called “What Makes us Yawn” by Melanie Radzicki McManus, a writer and editor that now is a member of the American Society of Journalists and Authors and the Society of American Travel Writers, tells us what yawning is. “Yawning is an involuntary action that causes us to open our mouths wide and breathe in deeply”. It usually happens when we are bored, tired, or drowsy.
There are a couple theories about why we yawn. A study led by Andres Gallup, a postdoctoral research associate in Princeton’s University’s department of Ecology and evolutionary Biology explains that yawning varies depending on the season that you are in. He took a poll of 160 people and studied their yawning in the summer and the winter. He concluded that people are less likely to yawn when outdoor temperatures exceed body temperature. He believes that yawning will act as a brain cooling technique when the body is hot.
A new study has shown that yawning is a way to cool down the brain. In an article by James Vincent, a scientist and reporter for The Independent- a news branch, explains how yawning does not make us less tired but it cools down our brain making us more alert and awake. Here we understand that you do not need to be tired or bored to yawn, if you are doing a lot of work that requires a lot of thinking you will yawn in order to cool down your brain.
One theory that is known by a lot of people is that yawning helps deliver oxygen to the brain faster. When we are tired or bored we tend to breathe slower meaning that not enough oxygen is getting to the brain. When we yawn it opens up our airways taking in more oxygen that can be delivered to our brain. According to a website called loc.gov in the section every day mysteries.
There are many theories and facts as to why we yawn and what it does for us. Scientists continue to work to discover why people yawn and what affects it has on the brain and body. Yawning is something that nobody thinks of why we are even doing it or what its purpose is. This involuntary action leads to many questions about our body.